You didn't think Zac Efron would stick to the status quo for Adam DeVine, did you?
In honor of his close friend and co-star's birthday, the former High School Musical star took to Twitter Monday afternoon for a surprise performance.
Ladies and gentlemen, prepare your ears for the sweet sounds of Mr. Efron.
"Happy Birthday to one hell of a sexy dude," he sang while wearing a black beanie and matching T-shirt. "Oh, Happy Birthday to one hell of a cool dude."
But wait, there's more. "Oh I said Happy Birthday Adam Devine, because you're the best, the best, the coolest of a f--king dude," Zac added.