The Talk Dirty singer is said to have met model Daphne Joy during a visit to the U.K. a few weeks ago and now they are dating.
Jason appeared to confirm the rumours on Friday (20Nov15) when he posted a photo of the couple together during a night out in London as part of the 'Flashback Friday' social media trend. He captioned the snap, in which he is pictured with his arm around Daphne as they raise a toast, "#FlashBackFriday #London #GoodTimes @daphnejoy".
The image has since been deleted from Instagram.com, but a source tells Eonline.com, "They really like each other. It's still new but they are exclusive and really like being around each other. It's a very carefree easy going relationship."
Daphne shares a three-year-old son named Sire with 50 Cent, and the hip-hop superstar appears to have given the thumbs up to his ex's reported new romance.
Hours after Jason uploaded the picture of himself and Daphne, 50 shared a photo of a line of text, reading, "The only f**ks I give are in bed", under which one fan commented, "@50cent @jasonderulo banging yo bby (baby) momma (sic)". Responding to the news, the rapper posted, "he is... cool somebody gotta do it (sic)."
The relationship is Jason's first since splitting from fellow singer Jordin Sparks last year (14) after three years together.
He subsequently confessed the pressure of having to settle down and marry prompted him to end the romance, and in July (15), he added insult to injury by admitting he wasn't truly in love with Jordin.
"I think everything happens for a reason," he told DuJour magazine. "I think I was in that relationship for a reason, and I don't regret anything, but at the same time I know how good it feels to be on my own right now. It's pretty clear that I'm not ready for that. I'm just not in the right space.
"I think true love can never be broken, so I don't think that I have found true love."
Jordin has since moved on to date rapper Sage the Gemini.