British actress Keira Knightley is so terrified of making a fool of herself at celebrity parties, she often considers not attending the lavish gatherings. The 22-year-old star hates getting dressed up for red carpet events and always fears being criticised for her choice of outfit. She says, "It is daunting. It is absolutely terrifying. Everybody likes dressing up, and I do too, but I'm terrified. "I stress so much before I come out that I'm nearly always OK once I go out. There's nothing I can do about it now, is there?"