Getty Images

Saturday Night Live is one of the funniest shows on TV - especially when the guest hosts rise to the occasion. It takes a lot to step out on the stage in front of a live TV audience and deliver the goods. Here are some very funny videos of guests impersonating other famous people.

SNL has always been a launch pad for super talented performers to get the national spotlight. When mega stars host the show, they can take it to another level. Paste Magazine has a great compilation of videos where guests on SNL really shine - and capture the essence of the person they are impersonating.