They've been friends (reportedly hooking up on the sly) for quite some time now. December 2014 to be exact. While rumours had died down of their dalliances while Leo was dating the latest model, they have since now split up. And it's awards season - a stressful time for any Oscar Nominated actor - so he obviously needs some downtime.
According to People: "Rihanna met up with Leonardo DiCaprio during a club stop in Paris on Sunday - but the pair are 'just friends,' sources say. The Oscar-nominated actor was seen hanging out with the 'American Oxygen' singer at the Arc club in the City of Light in the early morning hours of Sunday. Rihanna, 27, is currently in Paris to film Valerian and the City of a Thousand Planets alongside her BFF Cara Delevingne, who also joined the singer at the club. DiCaprio, meanwhile, is in the middle of a European press tour for The Revenant."
While the People source is insisting that "they're just friends", other sources speaking via Heatworld have another theory. Seemingly an eyewitness speaking with The Sun said: "Rihanna and Leo were really going for it. They were passionately snogging and didn’t seem to care if anyone saw."
Fair enough, hotel rooms in Paris are notoriously pricy.