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
I'm Gonna Let My Heart Do the Walking 40 recording and were constantly changing group members. After departures from Jean Terrell, Lynda Laurence and Cindy Birdsong - two times within four years - Mary Wilson struggled to keep the group going. After hiring Scherrie Payne, the group found themselves in search of a group member again after Birdsong left due to problems with the group's management team, led by Wilson's husband Pedro Ferrer. After Birdsong split in early 1976, Wilson eventually found another former Wonderlove background singer, multi-vocal talent Susaye Greene to complete the trio again. All of the tracks had been completed with Birdsong, but Greene was