After last Sunday... this isn't surprising at all.
This song just leaked... its billed as a Lil Twist song featuring Justin Bieber and Miley Cyrus... but Lil Twist isn't on this leak at all. So clearly its not final.
Basically, in "Twerk," Bieber sings about being in some club and valeting his car (but tossing himself the keys? Weird), and Miley just yells "tweeeerk, tweeeeerk" a lot.
One things for sure... homegirl REALLY likes to twerk. She twerks on beds, she twerks on other women, she twerks on giant teddy bears, she twerks on Robin Thicke, and I am guessing she was twerking while recording this song... she is a twerking machine.
Here's the track: