Arthur Lee Barbra Streisand Bill Withers Billy Preston Bobby Womack Boz Scaggs Gloria Gaynor Hall & Oates James Taylor Jean Carn Jermaine Jackson Juice Newton Justin Timberlake Kenny Rogers Klaatu La Toya Jackson Lionel Richie Nancy Wilson Pure Prairie League The 5th Dimension The Chipmunks The Mamas & the Papas The Pointer Sisters