Capital has announced that Ed Sheeran, David Guetta, Mabel, Aitch and more have been added to the line-up for its Summertime Ball with Barclaycard, which is returning to Wembley Stadium on June 12 after a three-year break. The news follows the first raft of acts, announced yesterday, that includes Harry Styles, KSI, Anne-Marie, George Ezra, Becky Hill, Sigala, Gayle, ArrDee and Eddie Benjamin. ...