It was recently revealed how the singer was overcome with jealousy when she watched Justin romping with another girl in his band N'Sync's music video Gone. Miss Spears said: "You could have taken a knife and stabbed me. I was devastated. It's really awkward seeing the person you love up there on this huge screen kissing somebody. I accept it because I know it's part of what we do but I can't watch it. I just go in the bathroom and shut the door."