Gareth O'Brien | November 2006 Daniel Oeffinger | December 2006 Of Montreal | January 2007 Gokhan Okur | August 2006 Okyo | April-June 2009 Yoko Ono | December 2005 OpenEnded Group | May 2007 OpenEnded Group | May 2007 Grant Orchard | July 2006 Grant Orchard | October 2007 Solo Sarah Orenstein | February 2007 Joakim Oscarsson | November 2005