LONDON, May 24 (UPI) -- Pop superstar Madonna and her director husband Guy Ritchie surprised a London crowd with an appearance at the British premiere of movie "Sin City."
An inside source told the Daily Mail that Madonna's and Ritchie's appearance at the Leicester Square screening surprised not only the crowd, but some of the film's assembled stars, including Brittany Murphy, Clive Owen, and Mickey Rourke.
"Madonna and Guy were a late addition to the guest list -- we only (just) found out that they wanted to come," the unidentified source said. "I don't think they know any of the actors, they just wanted to see the film."
Murphy was among those surprised to see the singer: "It's probably the second time I've ever been star-struck in my life. She's my idol."