One Direction: Harry Styles stops show to correct fan's grammar

A One Direction fan got more than she bargained for when her handmade poster was noticed by singer Harry Styles, who decided to give her an impromptu grammar lesson during a gig in Philadelphia. Sixteen-year-old Taelor Ford made a sign for the concert that read: "Hi Harry, your so nice." During the show, Harry noticed the mistake - grabbing a pen and quickly changing the sign.