Biffy Clyro will close this year's iTunes festival in London, it's been announced.

The free event will feature a total of 62 bands over 31 nights at the Roundhouse in Camden.

Other acts on the line-up include Kate Nash, Phoenix, Underworld, Scissor Sisters, Foals and The xx.

The National, The Futureheads, Plan B and Wild Beasts will also perform at the month-long event.

(by Jason Gregory)