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
Labelle by Sundray Tucker. By 1961, Jean Brown and Yvonne Hogan had ditched the group to get married and Patti and Sundray carried on as soloists. Later in 1961, Patti and Sundray's manager Bernard Montague contacted two singers from the Trenton, NJ singing group the Del-Capris, Nona Hendryx and Sarah Dash. Eventually Hendryx and Dash became official replacements for Brown and Hogan as the Ordettes. The group soon began working diligently by musician Morris Bailey. Bailey and Montague's schedule led to Tucker's parents to disband her from the group. Eventually, another singer, Cindy Birdsong, from Camden, New Jersey, was allowed to