June 22, 2010 | 5:07pm ET
Hard Rock Calling (formerly Hyde Park Calling) is an annual music festival held in Hyde Park, London, which first took place on Saturday July 1 and Sunday July 2, 2006. The music played is primarily rock music, and various performers, including The Who, Aerosmith, Neil Young and Bruce Springsteen have played at the event. The festival is organised by Hard Rock Cafe and Live Nation.