The On the Floor songstress showed off her toned pins in a thigh-skimming black halter dress and towering heels which she accessorised with a metallic clutch.
Her 25-year-old boyfriend made a statement in bright red blazer which matched J Lo”s scarlet-hued lipstick.
PHOTO FOR GALLERY
The couple, who have been dating since October 2011, warmly embraced each other as they smiled for photographers at the opening of Hakkasan Las Vegas at MGM Grand nightclub.
The pair were seen dancing to DJ Calvin Harris”s hits and were joined by a host of famous faces including High School Musical star Vanessa Hudgens, socialite Paris Hilton and Dutch DJ Tiesto.
The former American idol judge had plenty to celebrate. She won the Tour of the Year award at the Billboard Latin Music Awards last week for her summer tour with Enrique Iglesias.
Meanwhile Marc Anthony, J Lo”s ex-husband and father of her five-year-old twins Max and Emme, recently ended his brief relationship with Topshop heiress Chloe Green, according to reports.
Father-of-five Marc and business tycoon Sir Philip Green”s 22-year-old daughter Chloe enjoyed a whirlwind romance which saw her spending time with his young family including a trip to Disneyland.
Jennifer and Marc announced the “difficult decision” to end their seven-year marriage in July 2011. The couple have been determined to remain friends.
“He will always be in our lives,” said 43-year-old J Lo. “He will always hold a special place in my heart as the father of my children.”
Last year, the couple worked together on Q”Viva! (The Chosen), a reality TV show which searched for the best singers and dancers in Latin America.
“We”re just meant to be in each other”s lives in different levels,” said Marc.
J Lo has had previous high-profile relationships with Ben Affleck and P.Diddy.
“Sometimes it doesn”t work and that”s sad, but I remain an eternal optimist about love,” she has said.
There is an 18-year age gap between J.Lo and her current boyfriend, 25-year-old dancer and choreographer Casper Smart. J Lo admits that she thinks about the age difference. “The truth is we don”t know what”s going to happen,” she said.
“We”re loving this moment right now. We make each other happy.”