Kevin Brereton, better known by his stage name k-os (pronounced "chaos"), is a Canadian rapper, singer, songwriter and record producer. His given name may also be cited as Kheaven, a spelling he later adopted.
He released his second album Joyful Rebellion in 2004, which received platinum status in Canada. Joyful Rebellion received positive reviews, and Atlantis: Hymns for Disco, was released in 2006. His most recent album, Yes!, was released in 2009.