Harry Styles made a surprise appearance at Stevie Nicks' British Summer Time concert in Hyde Park, London, joining the legendary singer on stage for a special performance.Stevie had just paid an emotional tribute to her late friend Tom Petty, and Harry joined her for a rendition of Stop Draggin'...source https://www.thenews.com.pk/latest/1209286-harry-styles-pays-tribute-to-rock-legends-with-stevie-nicks