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Jennifer Lopez recently announced her upcoming residency at Axis Theater in Las Vegas, and what better way to celebrate her new gig than to party it up at Chateau Nightclub & Rooftop at Paris Las Vegas?

After the iHeart Radio Festival at the MGM Grand on Saturday night, J. Lo slipped into a sexy white Michael Costello suit and hit the club. After greeting fans, the 46-year-old singer headed to the VIP section, where she partied with boyfriend Casper Smart. The couple snuggled up to one another and listened to tunes like "Turn Down for What" and "Flicka Da Wrist," and later in the evening J. Lo revealed her newest song, “Breakin' Me Down,” which has yet to be released.

The sexy superstar left the venue at 3am with a customized bottle of champagne. Not a bad night!