Party up in here!
The British beauty certainly banged into the room when she made her grand entrance through the aisle in a tight, gold bodysuit. While belting out the lyrics, the songstress also showcased some sexy dance moves, grinding with Khloe Kardashian and Taylor Swift. The E! reality star even gave Jessie a little smack on the booty!
Crowd favorite of the night Frankie Grande also couldn't resist moving to the catchy beat as he supported his little sis on stage!