"Jennifer watched and had the best time at Drake's show," a source tells Us Weekly, adding that the pair "had dinner first at Hakkasan restaurant with a large group."
Another source tells Us that Lopez, 47, wore a red velvet halter-neck dress with a plunging neckline for their dinner and then "changed into a sexy ivory-color cutout dress for the club."
The "Childs Play" rapper, 30, also did a wardrobe change, wearing a suit at the restaurant before he switched to a more comfortable outfit for the club.
It was another show of togetherness for the talked-about twosome, who attended a winter wonderland_theme "prom" in L.A. on Thursday, December 29.
The pair, who were crowned prom king and queen at the bash, shared a kiss and took to the dance floor as a band played.
Just one day earlier, Lopez and Drake sent fans into a frenzy when they both shared an Instagram photo of themselves cuddling up on a couch, and looking like more than friends.
The singers first sparked romance rumors earlier this month when the Canadian rapper attended two of her Las Vegas shows and later invited Lopez to a private dinner party in West Hollywood.
Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!