While there has been a rumour of Leonardo DiCaprio dating Rihanna, this new rumour may add more fuel to it.

The 40-year-old actor who was present at designer Nikki Erwin’s party was seen getting all close and cosy with the singer. Onlookers even spotted them smooching. Whether the two were just flirting or was there something seriously cooking between them, we are yet to find out.

Apart from them, Nikki's boyfriend, producer Chuck Pacheco, Hilary Duff, Tom Hardy, and Paris Hilton were also present at the party.