Carmen Electra got so cold signing autographs at the premiere of her new movie 'I Want Candy' she had "goose-bumps the size of nipples".The sexy star stopped to greet fans and sign autographs in London's Leicester Square event on Tuesday despite freezing temperatures. However the harsh weather had a chilling effect on the petite actress, who was wearing a 60s-style turquoise mini-dress. A source told BANG Showbiz: "Carmen has been out in the cold for ages. She made sure she signed everyone's autographs and it's freezing outside. She has goose-bumps the size of nipples."Carmen - whose plays the world's top adult movie star Candy Fiveways in the new British comedy - confessed she was pleased the film was shot in the summer. She said: "It's so cold here in London. But we shot the film in the summer during the heat wave, so we were all sweating."It's very cold now. But it was all worth it."