Diddy and Sienna Miller paint the town red

There's an odd couple palling around these days: Sienna Miller and Sean "Diddy" Combs. The actress and the rap star first hit it off at the Golden Globes earlier this month and they've been seen together on a number of occasions since. What's up with these two?

After the Globes, Sienna and Diddy met up in Utah during the Sundance Film Festival. They hung out on January 20th at the MySpace Nights party at Tao during Sundance and then partied together again early Sunday morning in NYC. The pair hit Bungalow 8 before heading over to Pacha. An onlooker told Star magazine, "The curtains were drawn around the VIP area so nobody in the club could see them." Diddy and Sienna didn't leave Pacha until 7:30 a.m.

Who knows what they did for the next hour and a half, but Miller was seen getting out of Combs's nearly $800K Mercedes at 9 a.m. Diddy walked Sienna to her hotel, as paparazzi video footage can attest. The rapper must have been feeling paranoid because, according to The Sun, he asked that the paparazzi delete the photographs they had taken. He said, "Man, I was just being a gentleman and dropping her off. Yeah, we all hang out together but there's no more to it than that." Diddy then accompanied Sienna inside and did not leave for another 45 minutes.

So how did Miller end up with Combs? His reps told London's Daily Mirror, "Diddy and Sienna met at the Golden Globes and really got on well. It's strictly friends though. Diddy has lots of friends and likes to go out and have fun." Sienna's rep also confirmed to the New York Daily News that the relationship was platonic, stating, "Sienna is only interested in Sean as a friend."

A source for the Mirror explained Sienna's interest in Diddy. The insider said, "He always treats women like princesses - he's the perfect gent and Sienna is no doubt attracted to that." Another snitch said, "They make an odd pair but they seemed to be having a right laugh together. You can see they have a lot of fun."