The band believe Florence & The Machine should have been given the honour instead.
Glastonbury (Page 3)
Paul Weller will also be taking to the Pyramid Stage at the festival.
Drumroll please.... wait wait not too loud, Grandpa's napping.
Motorhead, The Chemical Brothers, Florence & the Machine and more have been announced for the festival
Some believe Kanye West shouldn't be headlining Glastonbury, but the Mumford's say they're wrong.
First Jay-Z's headline slot in 2008 was criticised, and now people want to see Kanye West replaced by old white…
Though organiser Michael Eavis says that three headliners have already been confirmed for the festival.
Noel's still as popular as ever.
The festival struggled to make a profit last year.
Tickets for the festival have sold out in just 26 minutes.
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