An unannounced set by Kaiser Chiefs has kicked off Glastonbury, Britain's leading summer music festival.
The British rockers played a surprise morning gig Friday, the first full day of the event. Dolly Parton, Arcade Fire, Blondie and Metallica are among the other headliners playing a festival famed for music -- and mud. Other performers include MGMT, M.I.A., Edie Goulding, Foster the People, Chance th...
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