Coming together to show off their work, Zac Efron and Seth Rogen showed up at the premiere of "Neighbors" on Monday night (April 28) in Westwood, CA.

Donning suits, the co-stars obliged shutterbugs and fans alike as they made their way to the Regency Village Theater.

Per the synopsis: "A couple with a newborn baby face unexpected difficulties after they are forced to live next to a fraternity house."

Directed by Nicholas Stoller, the comedy opens in theaters nationwide on May 9.