Bono, The Edge, Adam Clayton and Larry Mullen formed U2 back in the mid '70s. They have sold over 145 million albums worldwide and won numerous awards, including 22 Grammys. They were the first rock band to appear on the cover of Time magazine and have collaborated with the likes of Pavarotti and Brian Eno.
This unique programme features footage of U2's 2009 visit to London, where they played from the roof of the BBC's Broadcasting House to a captivated audience in the London streets below.