DJ Earworm - United State of Pop 2009 (Blame it on the Pop)

Our friend luseelooo linked me to the below mashup, with which I immediately fell in love. We all already know from our discussion of Music Tuesdays at Smile Like You Mean It that I'm a fan of EDM, and while it may not have surfaced here at FIWK, I'm a huge fan of Glee, so it makes sense that I'd be a fan of DJ Earworm. I challenge you to listen to this mashup of Billboard's Top-25 of 2009 and not bob your head; you can't do it.