The twerking isn't over yet…

Miley Cyrus is teaming up with none other than Justin Bieber on a new track called—what else?—"Twerk."

A source confirms to E! News that the two have recorded the song together, which also features Bieber's pal Lil Twist. The up-tempo track is produced by Meajor Ali and hasn't officially been released yet, and there has been no word on whether or not this is the final version of the song.

Miley is heard belting, "I came up in the party, time to twerk," while the Biebs chimes in with, "Lemme see you get out on the floor, girl. We gonna party ‘til it's over."