Blondie has been added to the British Summer Time Festival line-up. The band, fronted by Debbie Harry, will be supporting Phil Collins’ headline gig on Friday 30 June (17) at London’s Hyde Park. The Killers, Green Day, Justin Bieber, Kings of Leon and Tom Petty and the Heartbreakers are also headlining shows at the annual summer festival, which runs until 9 July.