Alleged couple Casper Smart and Jennifer Lopez sure know how to dance the night away!

Casper and Jennifer, along with some of their good friends, ate and danced at Hakkasan Las Vegas Restaurant and Nightclub at MGM Grand.

Jennifer, who looked extremely gorgeous in a revealing white jumpsuit and a Valentino leopard bag, arrived at Hakkasan with her friends for dinner and got cozy in the Private Dining area.

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After wining and dining, the 45-year old singer and actress quickly changed into a more suitable outfit for dancing. Wearing a crop top, leggings, sneakers and a hat, the "Booty" songstress made sure to enjoy the music from her VIP table on the club's main stage on the fourth floor.

Sources close to the singer revealed that Jennifer was in very "good spirits" and even posed for numerous photos with her friends, including Casper, and even happily waved to some of the clubgoers who called out her name.

Jennifer and Casper reportedly parted ways in June of last year, after dating for more than two years. However, news outlets claimed that the breakup was simply a publicity stunt to promote Jennifer's latest movie with Ryan Guzman "The Boy Next Door."

They were recently spotted together on April 4 in Ensenada, Mexico to celebrate Casper's birthday over the Easter Holiday. The 28-year old dancer took to his Instagram account to share a video of her and Jennifer biking along the beach in California.

Jennifer, who is 18 years Casper's senior, revealed to Andy Cohen last January on "Watch What Happens Live" that she's open to dating and going out with younger men.

TagsJennifer Lopez, Casper Smart, MGM, MGM Grand, Las Vegas, Hakkasan, Hakkasan Las Vegas, nightclub