Jennifer Lopez -- That Ass Picked Up Some New Tricks
J.Lo That Ass ... Picked Up New Tricks
![](https://imagez.tmz.com/image/c8/16by9/2014/07/10/c87bb6a4ecca5cc992c6f69896fea2ca_md.jpg)
Jennifer Lopez's booty busted into some new territory -- twerking like a twenty-something during her iHeart Radio concert ... even though she's 44!
It's either one giant leap for uhh ... more experienced asses -- or totally thirsty.