NEWS: Reading and Leeds Festival adds System Of A Down, Bring Me The Horizon and more to its 2013 line-up!

Reading And Leeds fesitval have added six more acts to its 2013 lineup.

Biffy Clyro will join the festival as main stage headliners, with System Of A Down, the returning Fall Out Boy, Bring Me The Horizon, Foals, and Jake Bugg also added to the bill, joining the likes of Eminem and Deftones who were previously announced.

The festival takes place over the weekend of 23rd – 25th of August.