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.

Sienna, however, insists that she is not dating the rap mogul, saying, "I am in love with someone but not Puff Daddy. He's just a good friend. Anyway he has a beautiful girlfriend."

However, at the beginning of July it was revealed that the mother of Diddy's children, Kim Porter, had moved out of his New York home which means that the superstar is single and free to date Sienna.

Kim isn't the only one moving out of the household. Diddy has revealed that he is looking to buy a home in London.

The star revealed, "I'm looking to buy a place in London at the moment. I just love this city, and I seem to be spending so much time here that it seems like the logical thing to do. Ideally I'd like to live in Soho, although I guess it might be a little noisy."

If Diddy moves to London, he will be much closer to his rumored girlfriend. He has even hinted that he wants to start seeing an English girl.

He said, "You guys are just so much fun - I don't know about the women, though. D'you know that I've never been out with a British woman in my life?"

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