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6 Johnny's Juniors were were chosen to become a dance support unit for Koichi Domoto (of KinKi Kids) in the NHK music program, Pop Jam. The unit became KAT-TUN, with Kamenashi Kazuya, Akanishi Jin, Taguchi Junnosuke, Tanaka Koki, Ueda Tatsuya, and Nakamaru Yuichi.
(*Note: The date is not exact) -
KAT-TUN holds their first concert called "Okyakusama wa Kamisama - Concert 55man Nin Ai no Request ni Kotaete!!" At the Tokyo International Forum. They performed to a crowd of 20,000, although 550,000 tried to get tickets. The concert footage is available on both VHS and DVD
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KAT-TUN releases their first photobook "KAT-TUN 1st in New York'
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KAT-TUN stars alongside Takizawa Hideaki in the Musical DREAM BOY
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Taguchi Junnosuke sustains a knee injury in rehearsal. He's out until August.
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KAT-TUN and Kanjani8 star in the musical Dream Boys (2004).
Taguchi is absent due to an injury. -
Kamenashi Kazuya and Akanishi Jin co-star in the second season of the popular drama "Gokusen". Kamenashi sings the insert song "Kizuna".
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KAT-TUN members become regulars on the NTV show "Minna no Terebi". Fans who don't recall this show might remember 'Kame's vocal lesson'. Which was on Minna no Terebi.
They guested until the end of the show in January 2007. -
KAT-TUN releases their DVD "KAT-TUN Live Kaizokuban". Which was filmed live at Yokohama Arena on January 4, 2005. It tops the Oricon yearly chart for the best-selling DVD. At the 20th Japan Gold Disc Awards, Live Kaizokuban placed on the Music Video Of The Year list
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Taguchi Junnosuke stars (from ep 4 on)alongside Nishikido Ryo in the drama "Ganbatte Ikimasshoi"
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Release of "SUMMARY of Johnnys World" DVD. Filmed live at Harajuku Big Top in August, 2004. Starring NewS and KAT-TUN.
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Kamenashi Kazuya, Nakamaru Yuichi, and Tanaka Koki star in the 2005 SP of the drama "Kindaichi Shonen no Jikenbo".
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Kamenashi Kazuya stars alongside NewS member Yamashita Tomohisa in the drama "Nobuta wo Produce"
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Due to the success of "Nobuta wo Produce" Kamenashi Kazuya and Yamapi debut as the unit "Shuji to Akira" with the single "Seishun Amigo". The single became the #1 single of 2005 after only being in the charts for 2 months.
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KAT-TUN's Debut is announced
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KAT-TUN holds a concert at the Tokyo Dome, becoming the first group to perform at the dome before debuting. (their debut was on the 22nd, 5 days later)
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KAT-TUN releases their debut single "Real Face", accompanied by an album, Best of KAT-TUN and a DVD Real Face Film. The group also went on a nationwide tour, Live of KAT-TUN "Real Face", in support of the album.
Within the first week, Best of KAT-TUN, "Real Face" and Real Face Film topped all three Oricon weekly charts by selling 556,548 copies, 754,234 copies and 374,202 copies respectively.
KAT-TUN holds the record for the highest weekly single debut sales. -
Taguchi Junnosuke stars in the SP drama 'HAPPY'. The theme song is "REAL FACE #1" off of the BEST OF KAT-TUN album.
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Tanaka Koki co-stars in the drama "My Boss My Hero".
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Kamenashi Kazuya stars in the drama "Sapuri". The theme song is "YOU" by KAT-TUN.
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KAT-TUN releases their second single, "SIGNAL" .It topped the Oricon weekly chart by exceeding 400,000 in sales.
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Kamenashi Kazuya and Tanaka Koki star in the drama "Tatta Hitotsu no Koi". The theme song is 'Bokura no Machi de" by KAT-TUN.
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KAT-TUN was the main celebrity personality for the NTV 24 Hour Television: "Love Saves the Earth" charity program
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Kamenashi Kazuya stars in the SP drama "YUUKI" (part of 24 hour television).
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Nakamaru Yuichi and Tanaka Koki host the show "YouTachi" together until the show ended in September 2007
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In a press conference, Akanishi Jin.announces a hiatus from the group in order to study English abroad in the United States, leaving KAT-TUN as a five-member group for six months.
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AT-TUN releases their 3rd single "Bokura no Machi de" (without Akanishi). It reportedly sold 410,103 copies and was certified as the 13th best-selling song of 2006
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Taguchi Junnosuke stars in the SP 'HAPPY 2' as Ootori Keiichiro.
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Tanaka Koki stars alongside Yamapi in the SP drama "Byakkotai"
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KAT-TUN started their second nationwide tour, Tour 2007 Cartoon KAT-TUN II You, still without Akanishi.
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KAT-TUN starts hosting their variety TV show "Cartoon KAT-TUN", which aired every Wednesday from 11:55 p.m. to 12:26 a.m.
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Taguchi Junnosuke co-stars in the drama "Hanayome to Papa" as Miura Seiji.
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Tanaka Koki stars in the drama "Tokkyu Tanaka 3 Go". The theme song is "Yorokobi no Uta" By KAT-TUN.
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KAT-TUN releases their 2nd album, "Cartoon KAT-TUN II YOU". In its first week of release, Cartoon KAT-TUN II You sold 270,976 copies in Japan
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Akanishi officially returns to Japan on the 19th.
There is a press conference on the 20th about his official return to KAT-TUN.
Akanishi joins the rest of KAT-TUN during their tour on April 21 in Sendai for the encore. -
KAT-TUN releases their 4th single "Yorokobi no Uta", which became KAT-TUN's fourth consecutive number 1 on the Oricon singles charts with more than 300,000 copies sold in its first week.
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Nakamaru Yuichi co-stars in the drama "Sushi Oji" alongside Domoto Koichi (KinKi Kids)
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Taguchi Junnosuke and Akanishi Jin star alongside Kanjani8 member Yokoyama Yu in the drama "Yukan Club". The theme song is "Keep the Faith" by KAT-TUN
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KAT-TUN releases their 5th single "Keep the Faith". In its first week of release, "Keep the faith" debuted at number 1 with 350,863 copies sold in it's first week. It stayed on the charts for 16 weeks and was certified as the fifth best-selling single of 2007 with total reported sales of over 459,919 units by the end of its chart-run.
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Kamenashi Kazuya stars in the drama "One-Pound Gospel". The theme song is "LIPS" by KAT-TUN.
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KAT-TUN releases their 6th single "LIPS". In its first week of release, "Lips" debuted at number one on the Oricon singles chart with 351,254 copies sold. It is the group's sixth consecutive chart-topper since their debut. The song spent 15 weeks on the chart and has reportedly sold over 421,902 copies to date KAT-TUN releases their 6th single "LIPS". In its first week of release, "Lips" debuted at number one on the Oricon singles chart with 351,254 copies sold.
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Kamenashi Kazuya starts hosting for own Radio show "Ks by Ks" aired by Nippon Cultural Broadcasting;
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Taguchi Junnosuke and Tanaka Koki start hosting their radio show "KAT-TUN STYLE'
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KAT-TUN releases their 7th single. In its first week of release, the single reportedly sold over 381,672 copies and hit the top spot on Oricon's singles chart. It also debuted at number 1 on Billboard's Japan Hot 100.[3] The song's total reported sales currently stand at 447,971 copies
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On May 15, during the MC segment promoting "Don't U Ever Stop" on Music Station, Kamenashi announced that two shows had been added to their Tokyo Dome tourdates, resulting in a total of four consecutive days at the Dome. This marked a historic event in the Dome's history, as KAT-TUN became the first Japanese artist to hold four consecutive days at the stadium since it opened in 1988.
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KAT-TUN's third album. In its first week of release, KAT-TUN III -Queen of Pirates- sold 240,317 copies. The album stayed on the Oricon albums chart for five weeks and has sold over 282,402 copies to date.[9] The album was the twenty-fifth best-selling album for the first half of the year and RIAJ certified it platinum denoting more than 250,000 shipments
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KAT-TUN goes on its tour for the "Queen of Pirates" album. Ending with 4 days at the Tokyo Dome.
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Ueda Tatsuya is the first KAT-TUN member to hold a series of solo concerts called "Mouse Peace" in September 2008. The concerts consisted entirely of songs he wrote himself.
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KAT-TUN releases their first Christmas single. The release consisted of a limited and regular edition, but both would only be sold during the holiday season. The single, with no drama tie-in and no B-side, still sold moderately well with more than 250,000 copies sold in its first week.
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Kamenashi Kazuya stars in the drama "Kami no Shizku". The theme song is "ONE DROP" by KAT-TUN.
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It was announced on January 23 that KAT-TUN would hold seven consecutive concerts at Tokyo Dome, Japan's largest and most prestigious arena, making KAT-TUN the first artists in history to do so. However, by the end of March, due to the large number of pre-reserved tickets, KAT-TUN's record breaking concert added extra tour dates. KAT-TUN's 2009 concert scheduled eight consecutive days in Tokyo Dome from May 15 to the 22, three days in Osaka from May 29 to the 31, and two more days in Tokyo Dome
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Nakamaru Yuichi stars in the drama "RESCUE". The theme song is "RESCUE" by KAT-TUN.
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KAT-TUN releases their 9th single. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 281,359 copies. By the end of the year, "One Drop" was reported by Oricon to sell 331,248 copies and was later certified Platinum by RIAJ denoting over 250,000 shipments
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KAT-TUN releases their 10th single. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 322,597 copies. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 322,597 copies.
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KAT-TUN releases it's 4th album. It debuted as #1 on the Oricon charts. RIAJ certified Break the Records: By You & For You platinum denoting more than 250,000 shipments by Semtember 2009
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Nakamaru Yuichi stars in the SP drama "Haha no Okurimono"
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Kamenashi Kazuya stars in the drama "Yamato Nadeshiko Shichi Henge". The theme song is "Love yourself ~Kimi ga Kirai na Kimi ga Suki~" by KAT-TUN.
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KAT-TUN releases their 12th single "Love yourself ~Kimi ga Kirai na Kimi ga Suki~". The single sold 157,000 copies on its first day, debuting at No. 1 on the Oricon Daily Singles Chart. By the end of the week, KAT-TUN gained their eleventh consecutive number one single on the Oricon Weekly Singles Chart since their debut, selling 354,231 copies
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Johnny & Associates announced that KAT-TUN will go on their first Asia concert tour as a five-member group while Akanishi will hold his own solo concerts in The United States, making him the first Johnny's artist to perform solo in the United States
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The last episode of CKT airs.
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Kamenashi Kazuya becomes a co-host for the sports show "GOING! Sports&News"
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KAT-TUN releases their 12th single. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 230,452 copies.
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KAT-TUN releases their 5th album "NO MORE PAIИ". No More Pain debuted at No.1 on Oricon Weekly Album Chart as of June 28 with first week sales of 154,096 copies and making KAT-TUN the first male group in 9 years to have 5 consecutive No.1 original albums after Kinki Kids from 1996-2001
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Johnny & Associates announced on July 17 that Akanishi would leave the group in late 2010 to pursue a solo career while the rest of the members would continue to work as a five-member group.On July 21, Akanishi himself confirmed through the official Johnny's mobile site, Johnny's Web, that he would leave KAT-TUN to focus on his solo career
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KAT-TUN releases their 13th single. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 230,829 copies.
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KAT-TUN releases their 14th single. The singles release is to coincide with the release of a new series of television commercials starring all five members of the group. The singles release is to coincide with the release of SOLIO commercials starring all five members of the group. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 181,494 copies.
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KAT-TUN took part in the first event of a new charity project called Marching J, a fundraising project for the Tohoku Earthquake victims.
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Kamenashi Kazuya becomes a Baseball Special Supporter for Dramatic Game 1844 aired by Nippon Television.
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Taguchi Junnosuke plays a supporting role in the drama Inu wo Kau to Iu Koto
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KAT-TUN releases their 15th single. In its first week of its release, the single topped the Oricon singles chart, reportedly selling 150,944 copies.
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KAT-TUN's 2011 tour is cancelled. The Kawasaki City, Kanagawa Prefecture Higashiougishima Higashi park had been planned as a venue, but has been designated as disaster emergency shelter, so as to keep safety a priority, the concerts were cancelled. The quake also caused fires. Fireworks at the conerts would be difficult if considering the emotions of the victims.The October "5 dome tour" that was scheduled was also cancelled. The opening of the baseball season was delayed due to the Earthquake.
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KAT-TUN with all its five members joined another Marching J project, "Johnny's Charity Baseball Tournament" with other Johnny artists and juniors at Tokyo Dome, in which the ticket sales would be donated for the Japan Earthquake and Tsunami victims
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KAT-TUN Releases their 16th single "RUN FOR YOU"
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Kamenashi Kazuya, Tanaka Koki, and Nakamaru Yuichi play leading roles in the stageplay Dreamboys
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Nakamaru Yuichi plays a starring role in the drama Last Money ~ Ai no Nedan
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Ueda Tatsuya plays a starring role in the drama Runaway ~ Ai suru kimi no tame ni
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Release of the single BIRTH
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Nakamaru Yuichi becomes a regular on the NTV sunday countdown show シューイチ
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Kame's old radio show Ks by Ks ends and he moves to a new one, 亀梨和也のHANG OUT on NACK5
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KAT-TUN gets a 10 episode variety show called "KAT-TUN no Zettai Manetakunaru"
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Kamenashi Kazuya stars in the drama Youkai Ningen Bemu. KAT-TUN sings the theme song, BIRTH
![Cartoon KAT-TUN [TV]](https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photo/1686709/image/a1f4cf86011cd4e0788766ba4af3a2ed?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJB6ZCNNAN7BE7WDQ%2F20250819%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250819T001745Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=79a1ffc0d14dba6a40fcc996add841c09af433b9dfc9a0e2b4463d881516d39e)
![Cartoon KAT-TUN II YOU [CD]](https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photo/1686733/image/c045fa1e58d8c787cb4e4a03ce7d143c?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJB6ZCNNAN7BE7WDQ%2F20250819%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250819T001745Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=3d56bce49e173fa22bab4617747a9df7b59f7e3fadf466e2d250d56b6ecaaf74)
![Queen of Pirates [Album]](https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photo/1686747/image/22fa9f7815dc854763130efa5ddf8d2a?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJB6ZCNNAN7BE7WDQ%2F20250819%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250819T001745Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=41c9e9ded16783f418252d65e386c3087b83adc144cd7a383cedbadecde34b29)
![RESCUE [drama]](https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photo/1686762/image/da9261a046e52a9122f3963d5d66a4e6?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJB6ZCNNAN7BE7WDQ%2F20250819%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250819T001745Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=74dcf116bcb74ca06c44e3db084746e6c073586499f0c6a70960f012256fcfb5)
![RESCUE [CD]](https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photo/1686764/image/47372b3ccc063fd7ee524fc395f64f86?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJB6ZCNNAN7BE7WDQ%2F20250819%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250819T001745Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=6b8eea265db9076582f74fdfc52a7acf4f37b0bd245c0e5271848b27057e46a2)
![Break the Records - By You & For You [CD]](https://s3.amazonaws.com/s3.timetoast.com/public/uploads/photo/1686769/image/53e892cd8ac7c5871714885277ed45de?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJB6ZCNNAN7BE7WDQ%2F20250819%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250819T001745Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=04b44469ab784bec87174d44a8e62121dac1d1d2a76963cde9ebfb22337e84bb)
