Zac Efron Jokes He's in 'Bound 4' with New Shirtless Photo!

Zac Efron shows off his ripped six pack abs in this new shirtless photo with his Neighbors co-star Seth Rogen!

The 26-year-old actor’s social media team joked on his Instagram account that he is part of “Bound 4″ after Seth and his buddy James Franco released their “Bound 3″ spoof video the day before.

“Whether you’re a #KanyeWest fan or not, fans are #Bound2 get a kick out of this new still from #ZacEfron and #SethRogen’s film #NeighborsMovie Check out all the neighborly shenanigans when the comedy hits theaters next May! #uhhuhhoney,” the caption on the photo read.

WOULD YOU WATCH Zac Efron in a “Bound 4″ video if it existed?