Fergie and Apl.de.ap at Naze Nightclub.

On Saturday night, R&B singer Keri Hilson put on a high-energy performance at Haze Nightclub at Aria. The superstar treated a packed crowd to a a selection of her greatest hits, including “Turnin Me On,” “Knock You Down” and latest hit “Pretty Girl Rock.” Partygoers went crazy when Hilson ended the set bringing some female fans on stage to dance with her!  Following the crowd-pleasing performance, Hilson entertained in her VIP section, sipping on cocktails with friends and dancing along to the sounds of the resident DJ David Christian.

On Friday, six-time Grammy Award-winner Fergie hosted the night at Haze Nightclub at Aria. Party-goers went crazy when Fergie, wearing Zac Posen, grabbed the deejay mic for an impromptu live performance joined with Black Eyed Peas members apl.d.ap and Taboo, just two nights before the group takes the stage at this year’s Billboard Music Awards.

The superstar trio performed a collection of the Black Eyes Peas hits including “I Gotta Feeling,” “Boom Boom Pow,” “The Time (Dirty Bit)” and “Just Can’t Get Enough” while members of the crowd, including Glee’s Cory Monteith and Mark Salling sang along. After singing a collection of her own hits, Fergie and her fellow band mates got the crowd roaring, performing classic hits from Guns N’ Roses, Journey and Bon Jovi.  Following the extended surprise stint, Fergie headed to her VIP area where she mingled with friends as apl.d.ap showered the crowd with bottles of Champagne.

Click on the photos below to enlarge.

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