We already know pop princess Miley Cyrus will host this weekend's episode of Saturday Night Live, but the next weekend marks the return of one of the funniest stand-up comics and breakout actors of 2009. NBC announced today that Zach Galifianakis will host the late night sketch series on March 12th. This will be his second time hosting and the comedian will be joined by musical guest Jessie J (making her debut appearance on the show). It's always great when a seasoned stand-up comedian hosts SNL, and I cant wait to see what Galifianakis does this time around