Kayef is a German pop and rap musician, as well as Youtuber from Dusseldorf. Kai Fichtner first published his own Hip Hop tracks on Myspace. Later he gave himself the pseudonym Kayef, consisting of the initials of his civil name, and began to spread his music on Youtube. Since his first album Sexstreetboys, which he produced together with Liont, he released four more albums to date, and has over 450,000 subscribers on Youtube.