After Florence + The Machine were bumped up to headliners at the UK’s Glastonbury Festival, filling in for an injured Dave Grohl, their original spot was left vacant. It ended up being filled by the former Britrock brats the Libertines, who performed a surprise show on the Pyramid Stage yesterday. They played three songs from their forthcoming reunion album — “Gunga Gin,” “You’re My Waterloo,” and a new full-band version of the rare, unreleased Pete Doherty solo track alternately called “Handsome” and “Anthem For Doomed Youth.” Watch them play “Anthem For Doomed Youth” live for the first time below.