Mark Sutherland One guaranteed blockbuster concert series this summer is the American Express Presents British Summer Time in Hyde Park festival. It will stage the most shows in its history between June 24 and July 10, with two concerts apiece by Adele, the Rolling Stones, and Pearl Jam, and additional gigs by Elton John, the Eagles and Duran Duran.AEG Presents CEO of European festivals Jim King tells Variety that this summer the event will set new records for its most tickets sold, highest gross, largest number of sponsors and highest sponsorship gross.“We’ve got the biggest line-up we’ve ever had, both in terms of quantity and the stature of the artists,” says King.