Celebrity sightings from a bro-fest weekend in Las Vegas — PHOTOS

Kevin Hart was in the Cosmopolitan hotel to do stand-up Saturday, and 

afterward, he got on stage at the hotel's Marquee nightclub with Busta

Rhymes, Sean Kingston, 2 Chainz and Trey Songz, while they sang some

songs, and Ne-Yo hung at Hart's table.

If that wasn't enough hip hop for one night, Drake sang in the club.

On Sunday, Hart and fiance Eniko Parrish went to Tao Beach and partied

with Ne-Yo, Hannibal Buress, TV host Terrence J, Busta Rhymes and

Domo Genesis.

Juicy J performed Saturday at Tao nightclub in the Venetian.

T-Pain performed Friday at Chateau Nightclub in the Paris hotel. Courtesy

photo of Chateau.

Russell Peters performed stand-up Sunday at the Palms.

Warren G performed Sunday at Hyde Bellagio.

Busta Rhymes performed with DJ Drama Friday at Tao nightclub.

And UFC bantamweight champ TJ Dillashaw hosted Friday at Hyde

Bellagio, appearing on the carpet with a woman whose identity wasn't

released.