Guy Ritchie is not dating Jemima Khan. The "RocknRolla" director sparked rumors he was in a relationship with Jemima after the pair were seen attending a series of parties together over the last month, but it has now been claimed they are simply friends.

A source close to Guy said: "It's not romantic, they are both with the same PR company and the two times they have been together recently were at work events. They have always got along well and have known each other for years."

Madonna is reportedly having a fling with a Brazilian male model. The "4 Minutes" singer met Jesus Luz in Rio de Janeiro while on a shoot for American magazine W, and the pair became so close she invited him to join her on the Sao Paolo leg of her "Sticky and Sweet" world tour.

A source told the New York Post newspaper: "She was very interested in him. He's there with her now and photographer Steven Klein is helping him get along with everyone."

Hugh Grant is reportedly romancing a former model who is 20 years his junior. The 47-year-old actor was seen flirting with brunette Catherine Fulmer, 27, during a recent trip to The Hamptons, in New York state.

The "Notting Hill" star was first spotted chatting to Catherine - who now works as a fashion designer - on a local beach.

Sienna Miller had her private parts digitally enhanced for her new movie. The 26-year-old actress had to have pubic hair added by computer wizard for some scenes in her new film "Hippie Hippie Shake."

In the movie, Sienna plays Louise, the girlfriend of publisher Richard Neville, who was heavily involved in London's party scene during the 60s.

Dancing professional Karina Smirnoff spoke about her breakup with boyfriend Mario Lopez during an interview on Monday. Smirnoff talked with E!s Chelsea Handler about her former "Dancing With the Stars" partner.

Handler told Smirnoff that they had heard that Lopez had been cheating on Smirnoff for close to a year with a Hooters waitress.

Liz Hurley and Hugh Grant often discuss the life they would have had together if they hadn't split up.

The model and the 'Love Actually' actor - who dated for 13 years before breaking up in 2000 - frequently ponder the possibility that they could have had a large family together if things had worked out differently.