Usher, Ashley Benson, Rob Kardashian party at XS Nightclub

The stars were in a partying mood this past weekend and came out in full force at XS Nightclub in Las Vegas where will.i.am was rocking out the DJ booth.

R&B superstar Usher and electronic phenomenon David Guetta joined will.i.am in the DJ booth just before 2 am. Will.i.am played Usher and Guetta’s latest hit, Without You, which was a huge hit with fans.

Rob Kardashian showed off his slimmed down physique, thanks to his Dancing with the Stars partner Cheryl Burke. The two showed off their dance moves at a exclusive VIP table raised above the dance floor.

Pretty Little Liars star Ashley Benson was spotted sipping on Grey Goose and canoodling with Ryan Good, who was rumored to have been hired by Usher to be Justin Bieber’s swagger coach! From the looks of it, Good had his swagger on overdrive, as he was holding Benson’s cell phone, pouring her drinks and whispering sweet nothings in her ear.
Photos: Danny Mahoney/XS Nightclub