Sienna Miller and P. Diddy are keeping everyone guessing over the status of their relationship.

The unlikely pair has been spotted looking quite cozy since they met at the Golden Globe Awards in January. However, the speculation has heated up after they were seen together at an after party for the Princess Diana concert in London.

Reports have been insisting that P. Diddy and Sienna Miller have been dating.

However, the only thing holding back the rumors from being true is Diddy's relationship with Kim Porter - the mother of his children. The rap mogul and Kim welcomed twin daughters seven months ago.

Sienna Miller and P. Diddy spent the night together at a top London nightclub, sparking fresh romance rumors.

The pair were together almost all evening at the rapper's post-Concert for Diana party at top nightspot Paper.

P. Diddy partied with Victoria and David Beckham after his U.K. tour was cancelled.

The rapper was devastated when his tour partner Snoop Dogg was denied entry to the U.K. following a brawl at Heathrow airport last year - so his friends David and Victoria took him out on the town on Tuesday night.

P Diddy doesn't mind keeping his lyrics on the dirty side, but he makes sure to keep himself clean for the lady in his life.

Diddy - real name Sean Combs - recently revealed he shaves his pubic hair.

Apparently, P. Diddy just isn't "cool" with Naomi Campbell and probably wishes he hadn't bumped into the short-tempered model over the weekend.

It's been said that the rapper "screamed" at Naomi Campbell during a heated bust-up at a Grammy's after-party.