4 Non Blondes was an American rock band formed in 1989 with bassist Christa Hillhouse, guitarist Shaunna Hall, drummer Wanda Day and vocalist Linda Perry. Prior to the release of their first album, Roger Rocha replaced Hall on guitar, and Dawn Richardson replaced Day on drums. They hit the charts in 1993 with "What's Up", their only hit. Perry left the band in 1995 to begin a solo career, and the remaining members disbanded soon thereafter. They represented American alternative rock genre of music.