Haute Events: Nelly, Rihanna and Bruno Mars at Haze, B.o.B and Pauly D at Jet, Travie McCoy at the Bank

Bruno Mars hosted New Year's Eve at Haze Nightclub.

Grammy Award-winning hip-hop artist Nelly hosted a blowout New Year’s Eve bash, treating Haze Nightclub at Aria party-goers to a live performance featuring up-and-coming artist Avery Storm and performing songs including “Dilemma,” “Here I am” and “Supermodel.” Once off stage, Nelly went to hang at a VIP table with an entourage of 25 friends. Later in the evening, girlfriend Ashanti arrived and was spotted sipping Champagne, playing with festive confetti canisters and giving Nelly lots of New Year’s Eve kisses.

Rihanna made a special surprise appearance at Sin City hot spot Haze Nightclub last night for Bruno Mars‘ live performance at the Aria nightclub. The crowd went wild when Mars belted out his hits including, “Just The Way You Are,” “Beautiful Girls” and “Grenade.” Once off the stage, Mars went to say hello to Rihanna at her VIP table before everyone danced the night away.

Breakthrough hip-hop star of 2010 B.o.B rang in the new year with a special performance at Jet Nightclub at the Mirage. B.o.B rocked the crowd with a live set that included his hit singles, “Nothing on You,” “Magic” and “Airplanes” as well as leading the crowd into the final countdown to 2011. After his performance, B.o.B continued to  celebrate the new year in style, clinking Champagne flutes and enjoying a midnight toast with friends from his VIP section.

Last night, “Jersey Shore” star DJ Pauly D hosted the evening at Jet Nightclub from behind the turntables. The reality TV star, who recently announced his MTV spin-off show, stole the crowds’ attention by mixing up sounds in the deejay booth throughout the evening. Surrounded by an entourage of gorgeous girls, Pauly D gave a shout out over the mic to the crowd and clicked glasses of Champagne to the new year with friends from the deejay booth.

To kick off the 2011, Travie McCoy performed live at The Bank Nightclub at Bellagio following dinner at Yellowtail Japanese eatery, prepared specially by executive chef Akira Bak. On New Year’s Eve, McCoy treated guests at Gold Boutique Nightclub at Aria at CityCenter to an impromptu live performance.

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