Zac Efron as you’ve never heard him before! Check out this video clip of Adult Swim’s animated series Robot Chicken, where Zac Efron voices “Billy Joel.” Never thought I’d hear Zac Efron singing about humping and schlongs! A little NSFW, by the way.

In the show, the 21-year-old former High School Musical star beats a sailor over the head with a beer bottle, dumps his body in the ocean and manically laughs about it.

Zac even gets to belt out his own rendition of Billy Joel’s “The Piano Man”! But in the end… his character gets brutally (but amusingly) stabbed to death.