Swedishsongwriter and opera and pop singer. He has participated in Swedish versions of the musicals Les Misérables and Chess. In 2002, Kempe had a hit with Vincerò, where he mixed opera and disco.

Kempe has participated in Melodifestivalen twice as a performer. He entered Melodifestivalen 2004 with the song "Finally", a tribute to his favourite composer Benny Andersson and in 2005 together with Sanna Nielsen singing Du och jag mot världen.