GLEE - Full Performance of "The Scientist",GLEE - Full Performance of "Barely Breathing",GLEE - Full Performance of "Barely Breathing",GLEE - Full Performance of "Don't Speak",GLEE - Full Performance of "Teenage Dream",GLEE - Full Performance of "It's Time",GLEE - Full Performance of "Chasing Pavements",Glee - Big Girls Don't Cry,Kurt&Blaine | No one ever said it would be this hard, Glee!