Okamoto's

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Biography
Okamoto's is a Japanese rock band, formed in 2006. They made their major label debut May 26, 2010 and were signed by record label Ariola Japan.

Okamoto's was formed by four junior high school students. Fans of influential Japanese avant-garde artist Tarou Okamoto, the members took a cue from The Ramones and each adopted stage names with the surname Okamoto.

Members
Shou Okamoto (オカモトショウ) – vocals
Real name Shou Iimura (飯村翔). Born October 19, 1990 in New York City. Former member of Zutto Zuletellz (ズットズレテルズ/Zuttozureteruzu) and the children's performance group Precoci. Son of American jazz saxophonist Scott Hamilton.

Kouki Okamoto (オカモトコウキ) – guitar
Real name Kouki Hayashi (林幸希i). Born November 5, 1990 in Nerima City, Tokyo, Japan.

Reiji Okamoto (オカモトレイジ) – drums
Real name Reiji Miyake (三宅零治). Born January 9, 1991 in Futako-Tamagawa, Setagaya, Tokyo. Former Zutto Zuletellz member. He is the eldest son of The Privates lead singer Tatsuji Nobuhara (延原達治). In his childhood he made child role dramas.

Hama Okamoto (ハマ・オカモト) – bass
Real name Ikumi Hamada (濵田郁未). Born March 12, 1991 in Tokyo. Former Zutto Zuletellz member. He is the eldest son of Masatoshi Hamada and Natsumi Ogawa.

Former Members
Masaru Okamoto (オカモトマサル) – bass (2006–2009)

(Source: Wikipedia)