Renee Zellweger has fuelled rumours of a romance with Sir Paul McCartney by declaring she has a "crush on him". Reports the couple were dating started when they were recently photographed chatting together backstage at a Tom Petty and the Heartbreakers concert in New York. A week after the concert, they were seen dining together at the American Hotel in Sag Harbor, New York. While the pair are yet to comment on the nature of their friendship, the Chicago actress admits she lusts after the rock legend, who is 27 years her senior. She says, "Paul MCCartney? I have a crush on him. "I haven't told him yet, but I think some friends of mine might have. Well, I guess if he doesn't know, he'll find out now."