Every single person in Wembley is belting out ‘GOTTA GET HIM OUT MY HAIR’. This image appears in the gallery:Summertime Ball 2017 Live: The Best Photos From On Stage At Wembley 5. Every single person in Wembley is belting out ‘GOTTA GET HIM OUT MY HAIR’. Picture: Derek Bremner 118 images See the full gallery: Summertime Ball 2017 Live: The Best Photos From On Stage At Wembley