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The Japanese boy band Smash!! disbanded in 2006 after six years of activity. The group was formed in 2000 by Johnny & Associates, and released their debut single "Sakurazaka" in 2001. Smash!! achieved mainstream success with their second single "U.S.A." in 2002, which sold over 1.5 million copies. The group released their final single "One Love" in 2006, before disbanding in the same year.