Music
WENN
The 'Mountains' rockers are due to perform on the Saturday of the Seaclose Park event, which runs from June 11 to June 13.
Acts already announced include headliners Jay-Z and The Strokes, as well as Blondie, Vampire Weekend, The Saturdays and Daisy Dares You.
Tickets for the event are available now.
> Biffy Clyro announce 2010 UK tour
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