Consider yourselves warned. Justin Bieber reveals his abdominal muscles in this photo.
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Justin Bieber is a guest here with Jimmy Fallon. He's slapping the host five.
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Take that, Jimmy Fallon! Robert Pattinson unleashes here with a Super Soaker.
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Barack Obama and Jimmy Fallon slow jam the news on Late Night. Pretty awesome.
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Jimmy Fallon is ready to rock at work. As long as you're female, you can work with him.
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Miley Cyrus and Jimmy Fallon are both wearing fake facial hair in this photo. We're not gonna ask why.
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