Check out these amazingly fun mash-ups of "Circus" vs. "We are Family," "My First Kiss" vs. "Heart of Glass," "Born This Way" vs. "Express Yourself" and "Black or White" vs. "Dynamite." With thanks to Lesley! Enjoy.

01 Circus vs. We Are Family

02 My First Kiss vs Heart of Glas

03 Born This Way vs. Express Your

04 Black or White vs. Dynamite