Following the news that Justin Timberlake, Queens of the Stone Age and Phoenix (among a few others) would be performing at this year's iTunes Festival, a number of new acts have been unveiled.

Sigur Rós, Vampire Weekend and Paramore are all set to perform at the Roundhouse in Camden this September, which is pretty decent, though Rizzle Kicks and Kings of Leon will also be making an appearance. You can't win them all.

For more information, and to apply for free tickets, head here.