The Sketchbook Japan
The Sketchbook Project was launched in connection to the anime Sket Dance due to its popularity because of the episode with the Kaimei Rock festival where the three main characters (Bossun, Himeko and Switch) formed a band, which was eventually called the Sketchbook. After an audition to gather similar members the real-life version of the band consists of three members in total: Tada Hiroshi (???) on bass and vocals, Kohara Riko (????) on guitar and Watabane Yuu (???) on drums.