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
Otis Birdsong ranks second on Houston's career charts in field goals, third in all-time steals, sixth in assists and ninth in field goal percentages. He continues to hold the school record for free throws with a total of 480. After completing his eligibility at the University of Houston, Birdsong was the second player chosen in the 1977 NBA draft when he was taken by the Kansas City Kings. He scored over 12,000 career points, averaging 18 points per game, in 12 seasons with the Kings, New Jersey Nets and Boston Celtics. Birdsong played in four NBA All-Star Games. He was a member