Lady Gaga did what she does best and put on a show stopping performance of Scheiße and Judas at the iHeartRadio music festival in Las Vegas this weekend. Gaga appeared on stage atop of a motorbike, that can only be described as a piece of modern art, and proceeded to sing and dance the crowd into a frenzy. I can't even imagine how much Lady Gaga spends on these one time set pieces and costumes!