Full Performance of "Doo Wop (That Thing)" from "The Back-up Plan" | GLEE...

https://www.youtube.com/watch?v=6SPAk30iAsk&feature=player_detailpage

Mercedes tries to help get Santana in on her recording deal as the two perform the hit Lauryn Hill single "Doo Wop (That Thing)." Subscribe now for more Glee...