Billy (William Everett) Preston (Vasilisa) Solo Audios All Billy (William Everett) Preston (Vasilisa) Media Billy (William Everett) Preston (Vasilisa) Audios Select OneOfficial Albums All Billy (William Everett) Preston (Vasilisa) Audios Other Group Releases Other Solo Releases Guest Appearances Live Recordings Production Roles Various Artists Multidisc Releases Benefits Official Albums: Official Gaia (2003) Alan Simon