* Linda Lewis: Lewis is a British singer, songwriter, and producer who has worked with a variety of artists, including Stewart. She provided backing vocals on his albums "Smiler" (1974) and "Atlantic Crossing" (1975).
* The Blackberries: The Blackberries were an all-female backing vocal group that worked with Stewart in the 1970s and 1980s. They appeared on his albums "Foot Loose & Fancy Free" (1977), "Blondes Have More Fun" (1978), and "Absolutely Live" (1982).
* Thelma Houston: Houston is a Grammy Award-winning singer who has had a successful solo career in addition to her work as a backing vocalist. She provided backing vocals for Stewart on his albums "A Night on the Town" (1976) and "Foot Loose & Fancy Free" (1977).
* Dee Dee Bridgewater: Bridgewater is a Grammy Award-winning jazz singer and actress. She has worked with a number of artists, including Stewart, and provided backing vocals on his albums "A Night on the Town" (1976) and "Foot Loose & Fancy Free" (1977).