Freenote is a J-Rock band currently consisting of three members: Chikako Hata (Vocals, Piano/Keyboard, Guitar), Masaya Sakamoto (Guitar), and Shingo Ōta(Drums). Formed in Kansai University in 2002, the group's first mini album was published on an indy label on December 3, 2003. The band first gained nationwide exposure when their first single, Kirai Tune (キライチューン), was used as the ending theme for the popular Japanese anime series Bobobo-bo Bo-bobo.