Kenshi Yonezu (米津 玄師 Yonezu Kenshi, born March 10, 1991), better known by his producer name Hachi (ハチ), is a Tokushima-born artist, musician, singer-songwriter, and VOCALOID song producer and illustrator.
Although he started producing VOCALOID original songs around May 2009, he had been producing music for a long time before that. In terms of musical style, the songs which he composes have a unique point of view. Similar to his musical works, his illustration style is also very characteristic, using a scribbled style, often combining abstract, surrealist, and urban elements.
In his second VOCALOID album, OFFICIAL ORANGE, he sings one of his album-exclusive songs, "Yuuen Shigai" (遊園市街 Urban Playground). The promotional broadcast of the song can be seen here.
On May 16, 2012, he released his third album, "diorama," moving away from VOCALOIDs by singing every song himself. He credited the album with his real name, Kenshi Yonezu, instead of his producer name, Hachi. He released three songs from the album on his Niconico account, to which they received much praise, despite not utilizing VOCALOIDs.