Biffy Clyro have been announced as headliners for this years Leeds and Reading Festivals alongside the previously anounced Eminem. This looks set to be Biffy Clyro's only UK festival performance this year.

Also announced as joining the line up this week are System Of A Down, Fall Out Boy, Foals, Jake Bugg and Bring Me The Horizon.

With one headline act still to be announced the line up is coming together nicely and we'll keep you posted as soon as we hear more.

Reading and Leeds Festivals take place over the Bank Holiday weekend of 23rd 25th August 2013.