Saturday night, ultimate fighters invaded Las Vegas during UFC 132. After the main event concluded, fighters and fans made their way to XS Nightclub at Encore Las Vegas where the official after party was held.

Fan favorite Wanderlei Silva celebrated his 35th birthday and return to the cage after more than a year at Tabú Ultra Lounge at the MGM Grand following his match against Chris Leben. Silva was met outside the venue by a flock of faithful fans and after posing for photos on the carpet, took time to shake hands, sign autographs and even pose for photos.

The MGM Grand was buzzing with excitement Saturday night after the most heated rivalry in the history of the bantamweight division came to a close when 135-pound champion Dominick Cruz defeated all-time rival Urijah Faber in the UFC 132 bout at the MGM Grand Garden Arena.

Adult film star Sasha Grey dined with eight friends inside the Garden Terrace Room at Nove Italiano before taking on her hosting duties at Moon Nightclub Saturday evening. She and her group sat at a table and enjoyed Ketel One bottle service, Crown Royal and assorted drinks served at the table.

UFC fighter Tito Ortiz celebrated his win Saturday night at Gallery Nightclub inside Planet Hollywood Resort where he held his official after-fight party. DJ Khaled hit the decks in the deejay booth and Jareb Dauplaise and Peter Shinkoda partied.

Saturday night, Grammy Award-winning artist B.o.B celebrated the Fourth of July weekend with a special live encore performance at Pure Nightclub at Caesars Palace.

Chateau Nightclub & Gardens at Paris Las Vegas celebrated Fourth of July weekend in style when the club hosted an evening with “Keeping up with the Kardashians” stars Scott Disick and Kourtney Kardashian. Also at the Vegas hot spot was UFC fighter Ryan Bader, fresh from his fight against Tito Ortiz, to host his official post-fight party, socialite Brittny Gastineau, her mother Lisa Gastineau, TNT’s “Falling Skies” stars Peter Shinkoda and Colin Cunningham and MTV’s “Hard Times of RJ Berger” star Jareb Dauplaise.

Shawn Marion of the Dallas Mavericks celebrated his team’s NBA Championship win at Lavo at the Palazzo Saturday night. Before heading into the dining room, the former UNLV star autographed a basketball on the red carpet. His mother, family and 20 friends joined him in the restaurant as they dined on signature dishes sent from the chef. Marion stood at the head of the table to say a few words and toast to his victory.

Holly Madison, Vegas’ favorite showgirl and headliner of Planet Hollywood Resort’s “Peepshow,” celebrated the holiday weekend on Saturday at Flamingo’s tropical resort GO Pool.