Karmin performed thier hit 'Broken Hearted on 'The Tonight Show' with Jay Leno on Monday night.

When pop stars perform live on the late night talk shows you can usually expect one of two things. They will lip sync over a track of their band. Or they will do what  Karmin did and totally blow you away with a great live performance. I was very surprised by how great they sound and the look of the band reminds me of the bands back in the 80's. What do you think of Karmin's performance of 'Broken Hearted'?