Calling Festival (formerly Hyde Park Calling and Hard Rock Calling) is an annual music festival, formerly held in Hyde Park, London, from 2006 until 2012, and from 2013 in Queen Elizabeth Olympic Park, London. The music played is primarily rock music, and various performers, including The Killers, Paul McCartney, Eric Clapton, The Who, Bon Jovi, Roger Waters (with Nick Mason), The Police, Aerosmith, Neil Young and Bruce Springsteen have played at the event. The festival was organised by Hard Rock Cafe and Live Nation. In September 2013, Hard Rock International announced that they would no longer be sponsoring the festival, however Livenation confirmed that the event would return in 2014 under the name of Calling Festival at the Clapham Common.
The inaugural festival had two stages, and was headlined by Roger Waters (performing in its entirety the Pink Floyd album The Dark Side of the Moon as part of his set) and his band (featuring Pink Floyd drummer Nick Mason) on the Saturday and The Who on the Sunday. Gates opened at 14:00 and the show ended at 22:15 on both evenings.The Who's Sunday headline performance was released as part of their Encore Series 2006 of CDs & DVDs.