Lady GaGa steals a page from Justin Bieber's playbook!


Over the course of the past two weeks, the two biggest stars in pop music (Justin Bieber and Lady GaGa) have spewed their guts while performing in concert.  This past weekend, Lady GaGa was performing "The Edge of Glory" in Spain.  She blew chunks, and then continued the show without missing a beat!  Check out the video below.  Also, revisit Justin Bieber's throw up video HERE!