If you had a choice between Zac Efron or Seth Rogen joining your cubicle, it's probably no contest. (Rogen, right? Totally.) The Neighbors costars collaborated with the men of Workaholics to promote their upcoming film, and the results are just about the funniest thing you'll see all day. Rogen and Efron get a little competitive about who's got the best vibes, Efron gives Adam a sexy lap dance (much to Anders's chagrin), and Efron shows off his "gorgeous" assets. Yes, it's exactly what you're thinking. It's no wonder Workaholics is one of our favorite Comedy Central shows and that we're counting the days until Neighbors is released! (22 days.)