The 'Diamonds' singer is said to have reunited with rapper Drake, according to US reports.
Life & Style magazine reports that the couple were spotted getting cosy (aka, smooching) at New York eatery Sons of Essex last month, and are officially back together.
The couple were apparently due to go public at the MTV VMAs, but a big fight before the ceremony stopped them from doing so.
That could go some way of explaining RiRi's mardy face at the event, then.
A source explained: "Rihanna really looked miserable while at the VMAs, even when the cameras were on her. That's what the problem was. She and Drake are dating and they had a fight."
The couple briefly dated in 2010 and again in 2011, and even teamed up to record hit collaboration 'What's My Name'.
Drake is a sworn enemy of Rihanna's other ex, Chris Brown, and the pair famously came to blows last year, brawling in a New York nightclub.
For more about Rihanna and Drake, pick up the new issue of Life & Style Weekly, on newsstands now.