As with any visit to The Entertainment Capital of the World, the celebrities hit up some of Las Vegas’ hottest nightclubs to celebrate, party and play the weekend away. And this weekend we saw some famous faces we don’t regularly see like “Biggest Loser” trainers, boy band members and some big Hollywood stars. Here is this weekend’s Las Vegas celebrity recap:

Tao at the Venetian welcomed Biggest Loser trainers Jillian Michaels and Bob Harper on Saturday night. The good cop/bad cop training duo were joined by Michael’s girlfriend Heidi Rhodes and friends. Prior to partying at the Las Vegas nightclub, Michaels dined at the Asian Bistro. She then headed to the boutique nightclub where she got into the DJ booth with Eric D-Lux.

Showing off her incredible will power while at one of the hottest nightclubs in Las Vegas, Michaels abstained from drinking a bottle of champagne that was flown over to her by Tao’s bottle fairies from an admiring fan. Michaels reportedly had an early morning.

Also spotted at Tao, and not turning down bubbly was Nick Carter, who turns 33 today. The Backstreet Boy celebrated his b-day with girlfriend Lauren Kitt, sister Angel and friends. The group also enjoyed dinner before hitting up the club where he was surprised with a birthday cake. D-Lux gave him several shout outs and even played a few Backstreet Boys songs as Nick stopped by the booth to thank him.

Meanwhile, over at LAX Nightclub in the Luxor, Maxim’s 2012 Bottle Service Beauty Search winner Gina Ruggieri partied at the Las Vegas hot spot. Featured in Maxim’s January/February 2013 issue, the model cocktail server turned manager was the main attraction for the evening, as partygoers couldn’t keep their eyes off of her. The brunette beauty spent her night sipping cocktails and dancing into the early morning hours.

Prior to the weekend’s festivities Strip stars turned out for the premiere of Jennifer Lopez and Jason Stratham’s new movie “Parker” at Planet Hollywood. Peepshow stars Coco Austin, Chaeza and Josh Strickland as well as Luxor headliner Carrot Top, Holly Madison, Randy Couture, Chef Carla Pellegrino and upcoming Stratosphere headliner Claire Sinclair were all spotted at the premiere.

Jason, J.Lo and her boyfriend Casper Smart celebrated the premier later that night at The Lounge inside Gallery Nightclub. The after-party was hosted by “Extra” host Mario Lopez and included guests Madison, Coco, Carrot Top and Josh Strickland among others.

That’s all of the celebrity news I have for today. Check back tomorrow for much more.

Las Vegas, NV - 1/28/13