"So I say, 'January, you are an actress in a show, and everybody's going to forget about you in a few years, so f---ing be nice' -- and I got up and left."

The actor will be joined by musical guest Of Monsters and Men on May 4.

Zach Galifianakis is headed back to Saturday Night Live.

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The Hangover Part III star will host the May 4 show, NBC announced during Saturday's episode. He will be joined by musical guest Of Monsters and Men. The comedian most recently hosted in 2011 to rave reviews. A year earlier, he hosted for the first time in March 2010.

SNL airs Saturdays at 11:30 p.m. on NBC.