The pair reportedly attended Lil Pump's 19th birthday party at the L.A. hot spot, and were photographed holding hands as they walked past paparazzi and over to Foxx's white Lamborghini SUV. An eyewitness tells ET that Foxx arrived to Bootsy Bellows late Friday night/early Saturday morning at 1:45 a.m. and left the nightclub minutes later, at 2 a.m., holding the hand of Vave. They walked to his car with Foxx driving away and Vave seated in the front passenger seat.
Foxx was rocking a white Balenciaga sweater hoody, black jeans and white Fendi sneakers while Vave stunned in a champagne metallic mini-dress and matching heels.
While the photos might be spurring on theories that the pair could be romantically involved, a source tells ET that Vave is a singer/songwriter Foxx is helping.
ET has reached out to Foxx's reps for comment.
Vave has seemingly not shied away from publicly thanking Foxx for his help and mentorship regarding her career, sharing a number of snapshots to Instagram alongside the singer and a number of other big-name artists over recent weeks.
The singer shared a trio of black-and-white photos of herself and Foxx back in June, which she captioned, "I am so grateful to this man! Thank you so much @iamjamiefoxx for everything you do and for believing in me. #feelingblessed"
In July, she also joined Foxx and a large group of friends and family on a trip to Disneyland. "Unless your fighting in Toon Town this is the happiest place on earth!" Vave captioned the pic.
Most recently, she posted a series of photos and videos from her time at this year's Apollo in the Hamptons benefit in New York where she sang on stage alongside Foxx and Bon Jovi and Run DMC, among others.
During an interview with Power 106 Los Angeles in July, Foxx gushed about Vave's talent.
"Next thing I know she's sitting on my stairs with an acoustic guitar singing a broken-down version of Beyonce," Foxx said of meeting Vave. "I film and you know what was crazy? She wasn't trying to be Fantasia, Whitney Houston, she was quiet. And I said, 'You know how hard it is to play a guitar and be quiet and not try to American Idol you?'"
Meanwhile, on Sunday, Foxx's reported longtime girlfriend, Holmes, was spotted smiling and walking solo through midtown Manhattan.
"They are so great and Katie is always so chic. They were wonderful," the 25-year-old actress said when asked about Foxx and Holmes' 2019 Met Gala looks, where the pair posed together inside the event, which is a rare occurrence for them.
Meanwhile, Corinne had nothing but amazing things to say about her dad and the Logan Lucky actress, sharing, "They're really good, really great."
For more on the couple -- who have reportedly been dating for six years -- check out the video below.