Zac & Seth Lap Dance and More to Spread 'Neighbors' Word

Neighbors is already being billed as the next Knocked Up, and co-stars Seth Rogen and Zac Efron are going all out to make sure that happens, whether its breaking out a lap dance "vibe" or taking on actual college kids in drinking games! Watch the video to see what they're doing to make people laugh and get butts in seats...

From a lap-dancing spoof with Workaholics that went viral online to Vine videos of the stars playing beer pong at colleges, Zac and Seth are clearly tuned in to their target audience -- including frat boys and pot smokers!

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Rose Byrne, Christopher Mintz-Plasse, Dave Franco, Ike Barinholtz and Jerrod Carmichael also star in the outrageous comedy about a young couple suffering (Rogen and Byrne) from arrested development who are forced to live next to a fraternity house after the birth of their newborn baby.

Related: Efron -- I'll Accept MTV Movie Award Shirtless!

Directed by Nick Stoller (Forgetting Sarah Marshall, Get Him to the Greek), Neighbors moves into theaters May 9.