List of Japanese group debut order and age at debut of individuals

TOKIO (debuted on 1994/9/21)

• Shigeru Johjima (age 23)
• Tatsuya Yamaguchi (22 years old)
• Taichi Kokubun (age 20)
• Masahiro Matsuoka (age 17)
• Tomoya Nagase (age 15)

V6 (debuted on 1995/11/1)

• Masayuki Sakamoto (age 24)
• Hiroshi Nagano (age 23)
• Inohara, Yoshihiko (age 19)
• Tsuyoshi Morita (age 16)
• Ken Miyake (age 16)
• Junichi Okada (age 14)

KinKi Kids (1997/7/21 debut)

• Koichi Domoto (age 18)
• Tsuyoshi Domoto (age 18)

Arashi (debuted on 11/3/1999)

• Satoshi Ohno (age 18)
• Sho Sakurai (age 17)
• Masaki Aiba (age 16)
• Kazuya Ninomiya (age 16)
• Jun Matsumoto (age 16)

NEWS (Debuted on 11/7/2003)

• Keiichiro Koyama(19)
• Ryo Nishikido(19)
• Tomohisa Yamashita(18)
• Takahisa Masuda(17)
• Hiroki Uchihiro (age 17)
• Shigeaki Kato(16 years old)
• Yuya Tegoshi (15 years old)
• Hiroki Kusano (age 15)
• Takahiro Moriuchi(15 years old)

Kanjani Eight (2004/8/25 debut)

• Yutaka Yokoyama (age 23)
• Shibuya Subaru (22 years old)
• Shingo Murakami(22)
• Ryuhei Maruyama(20)
• Akihiro Yasuda(19)
• Ryo Nishikido(19)
• Tadayoshi Okura(19)
• Hiroki Uchihiro (age 17)

KAT-TUN (debuted on 2006/3/22)

• Yuichi Nakamaru(22)
• Tatsuya Ueda(22)
• Jin Akanishi (age 21)
• Sei Tanaka (age 20)
• Junnosuke Taguchi(20)
• Kazuya Kamenashi(20)

Hey! Say! Jump (Debut: 2007/11/14)

• Kota Yabu(17)
• Yuya Takagi (age 17)
• Toshi Inoo (age 17)
• Hikaru Yaotome (age 16)
• Hiroki Arioka (age 16)
• Keito Okamoto(14 years old)
• Ryosuke Yamada(14)
• Yusho Nakajima (age 14)
• Chinen Yuri (age 13)
• Ryutaro Morimoto (age 12)

Kis-My-Ft2 (2011/8/10 debut)

• Hiromitsu Kitayama (age 25)
• Wataru Yokoo (25 years old)
• Taisuke Fujigaya (age 24)
• Toshiya Miyata (age 22)
• Yuta Tamamori(21)
• Takatsugu Nikaido (age 21)
• Ken'ei Senga (age 20)

Sexy Zone (Debut: 2011/11/16)

• Kento Nakajima (age 17)
• Kikuchi Fuma(16 years old)
• Katsutoshi Sato(15)
• Satoshi Matsushima (age 14)
• Marius (age 11)

A.B.C-Z (2012/2/1 debut)

• Koichi Goseki (age 26)
• Shota Totsuka(25)
• Ryouichi Tsukada(25)
• Ikuto Kawai (age 24)
• Ryoaki Hashimoto(18)

Johnny's WEST (debuted 4/23/2014)

• Junta Nakama (age 27)
• Takahiro Hamada (age 26)
• Terufumi Kiriyama (age 25)
• Daiki Shigeoka (age 22)
• Tomohiro Kamiyama (age 21)
• Ryusei Fujii (age 21)
• Nozomu Kotaki (age 18)

King & Prince (debuted 5/23/2018)

• Yuta Kishi (age 22)
• Genki Iwahashi (age 21)
• Shiyoh Hirano (age 21)
• Yuta Jinguji (age 20)
• Ren Nagase (age 19)
• Kaito Takahashi (age 19)

SixTONES (debut on 1/22/2020)

• Yugo Takaji (age 25)
• Daiga Kyomoto (age 25)
• TANAKA Ki (age 24)
• Hokuto Matsumura (age 24)
• Jesse (23 years old)
• Shintaro Morimoto (age 22)

Snow Man (debut on 1/22/2020)

• Tatsuya Fukasawa (age 27)
• Daisuke Sakuma (age 27)
• Sho Watanabe (age 27)
• Ryota Miyadate (age 26)
• Teru Iwamoto (age 26)
• Ryohei Abe (age 26)
• Koji Mukai (25 years old)
• Meguro Ren (age 22)
• Raoul (16 years old)

1. Tatsuya Fukasawa (27 years, 8 months)
2. Koichi Goseki (26 years, 7 months)
3. Junta Intermediate (26 years and 6 months)

1. Marius (11 years and 7 months old)
2. Ryutaro Morimoto (age 12 years and 7 months)
3. Chinen Yuri (13 years and 11 months old)