It's all about the revenge cleavage, y'all!
The 20-year-old actress attended the Alberta Ferretti and Vogue Limited Edition Collection Fashion Show at the Chateau Marmont in El Lay on Thursday, baring her chest almost down to the belly button in a midnight blue Alberta Ferretti dress.
Jeweled pumps, lots of bling, and a doing-great-without-you smile completed her look.
Take that, Justin!
[Image via Getty Images.]