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Jennifer Lopez Amazes Vegas Crowd in Tight, Sexy Red Dress

USMagazine, Monday, September 26, 2011, 8:25am (PDT)

Work it, J-Lo!

Jennifer Lopez showed off her figure in a tight, sexy red dress during her performance Saturday in Las Vegas at the iHeartRadio Music Festival. Just two months after splitting with hubby Marc Anthony, the 42-year-old glammed things up with bejeweled fishnet tights and a red feather cape.

PHOTOS: How J-Lo's style has morphed for her men

Following Lopez's show-stopping performance, the mom of 3-year-old twins, Max and Emme, dropped by PURE Nightclub inside of Caesars Palace. A source tells Us Weekly the singer arrived at the megaclub "with a very large entourage that included family, friends, her back-up dancers, [and her longtime manager] Benny Medina" shortly before 1 a.m.

PHOTOS: More pics of J-Lo's adorable twins

Lopez changed out of her attention-grabbing red number and into a tight cream-colored dress with hot pink piping and matching hot pink heels. In the club, she was "surprised" that the entire VIP area was decked out with decor that mimicked her album cover for Love. A source tells Us she "immediately kicked off the party with a champagne toast followed by showing off her dance moves alongside her back-up dancers." 

PHOTOS: Look back at Jennifer and Marc in happier times

When Steve Bartels, President of Island Records and COO of Island Def Jam Music Group, presented Lopez with a surprise honor for her first single "On the Floor" having been certified with over three million downloads, the newly single singer-actress hit the stage, "dancing and singing as 'On the Floor' played in the background."

PHOTOS: J-Lo's style evolution

The What to Expect When You're Expecting star and her entourage spent the rest of the night dancing and partying until the early hours of the morning.

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