Bleeding Love singer Leona Lewis was 90 minutes into a book signing for her autobiography, Dreams, at a London bookstore when a man waiting in line lashed out and slapped her in the head, says tmz.com.
"Leona was the victim of an unprovoked attack this afternoon at her book signing," the star's rep said in a statement. "The police were called immediately and medical attention has been sought. Leona is understandably shaken and apologizes to the fans she was unable to meet and complete signings."
