Cindy Birdsong did not hear Birdsong's voice on most of The Supremes' newest singles. Except for featured backgrounds on several collaborations with The Temptations, live album tracks, and some studio LP tracks, Birdsong and fellow member Mary Wilson did not sing backing vocals on the group's later singles. Session singers The Andantes substituted for Mary and Cindy on many, although not on all, cuts in subsequent Diana Ross & the Supremes albums. Both the "Let the Sunshine In" album and the "Cream of the Crop" album include tracks on which Florence Ballard, Mary Wilson and Cindy Birdsong sing back-up, often in tandem
Mary Birdsong Velma Von Tussle, the bigoted, pushy stage mother and television producer. Birdsong left the production on April 6, 2008. She then performed her one-woman show "3 Days in the Tub: A Mama Drama" in Los Angeles at Comedy Central Stage (September 2010) & the Fake Gallery (November 2010), and in New York City at Joe's Pub (January 2011). before going to San Francisco to play Mona Ramsey in ACT's adaptation of Armistead Maupin's "Tales of the City". Together with author Justin Halpern ("Shit My Dad Says") and comic Jen Kober ("American Reunion"), Birdsong performed as a member of the May