Jo Whiley, Mark Radcliffe, Lauren Laverne and Huw Stevens present live coverage from one of the world most famous music festivals. Saturday's headline act Metallica have divided critics ever since they were announced as playing, with some saying they don't fit the 'Glastonbury ethos', whatever that means. Either way, expect things to get loud. Pixies, John Grant and Manic Street Preachers will also be on hand throughout the evening to get your foot tapping.