In conjunction with their best-of album 20 hitting stores today (Tuesday),TLC performed on Good Morning America's Fall Concert Series.

T-Boz and Chilli treated anxious fans to classic such TLC hits as “What About Your Friends,” “Waterfalls” and “No Scrubs.” Later they were joined by Lil MamaKeke Palmer and Drew Sidora, the stars of the VH1 bio-pic CrazySexyCool: The TLC Story.