Billy (William Everett) Preston (Vasilisa) Solo Audios All Billy (William Everett) Preston (Vasilisa) Media All Billy (William Everett) Preston (Vasilisa) Media Guest Essentially John Mayall (2006) John Mayall Official Gaia (2003) Alan Simon Guest Along For The Ride (2001) John Mayall Writer SAS Band (2000) SAS Band Guest The Best Of Delaney & Bonnie (0000) Delaney & Bonnie Guest All Things Must Pass (0000) George Harrison