There is more than one artist with this name. 1. A Canadian band 2. An Australian heavy metal band 3. A Japanese band 4. An Amsterdam producer-duo 1. Cleavage was a Canadian band based mainly in Toronto, Ontario. Members included Lukas Rossi on lead vocals, John Jamieson on drums & percussion, Bill Jamieson on bass, Jeff Smith on guitar, piano, and backing vocals. The four members of the band grew up in the same neighbourhood and had known each other since childhood.