The "Bound 2" music video was a wild success because it featured Kim Kardashian topless, on a motorcycle, straddling Kanye West.
The "Bound 3" music video was equally awesome because it featured Seth Rogen and James Franco recreating the original shot for shot, including one serious makeout session between the actors.
So it only makes sense that Zac Efron would look to capitalize on this trend, as the actor posted the following photo to Instagram yesterday.
It features him and Rogen shirtless and teases an upcoming performance titled "Bound 4."
No such video is actually on the way, it should be noted.