Over at Haze Nightclub at Aria, LMFAO’s RedFoo (sans SkyBlu due to an injury), arrived around 10:45 p.m. to the Las Vegas mega-club. Greeted by fans ready to “Party Rock” into 2012, RedFoo hit the stage and set the high-energy mood for New Year’s Eve party-goers.

Bruno Mars’ New Year’s Eve performance at Sin City hot spot The Bank Nightclub at Bellagio was unlike anything he has ever done before. Performing a 45-minute show with a nine-piece band, Mars’ set included new and old chart-topping covers.

On New Year’s Eve, Kanye West joined party host Fergie to celebrate the premiere of the highly anticipated 1OAK Las Vegas at the Mirage. After much speculation surrounding his Twitter campaign to DJ on New Year’s Eve, Kanye took the stage and thrilled party-goers with a three-hour set.

Last night, Drake performed to a sold out crowd at The Joint at Hard Rock Hotel as part of the New Year’s Eve Absolution at the resort.

Lavo kicked off the new year on Sunday with a Hungover and Broke party hosted by Kreayshawn, who surprised the crowd with her song “Gucci, Gucci.” She was joined on stage by Vanessa “V-Nasty” Reece and happily posed for photos with fans throughout the night.

Kourtney Kardashian, Scott Disick, Nicole Richie, Joel Madden, Benji Madden, Holly Madison and Ronnie Ortiz-Margo all kicked off their New Year’s Eve festivities with dinner and shopping at Sugar Factory American Brasserie inside Paris Las Vegas last night.
 

Rob Kardashian counted down to 2012 looking quite dapper in a black tuxedo and bow tie. He walked the red carpet before heading into the New Year festivities at the Wynn Las Vegas hot spot.

Kaskade brought in the new year at Marquee Nightclub at the Cosmopolitan of Las Vegas. The deejay, named America’s Best DJ by DJ Times, took to the booth just before midnight and led the packed club in the countdown, which was displayed on Marquee’s 40-foot LED screen above.   

New Year’s Eve in Las Vegas would not be complete without an all-out bash hosted by the queen of Sin City Holly Madison.