SNL Performances That Completely Destroyed Careers

It's not surprising that SNL celebrity guests get nervous before they perform on one of the premiere comedic establishments on television. There's a lot of improvising and ad-libs that go on in these sketches, and a hosting or musical guest gig is also an indication that you have arrived as a star in showbiz. But even the most confident and seasoned performer can flub up on such a prestigious stage.