Despite the line-up for Reading/Leeds Festival 2012 not officially being unveiled until this evening (7.15pm) At The Drive-In have announced that they'll be playing the festival via their twitter account today.

Did the band make a mistake by announcing it too early? Or is it a clever publicity stunt to get people excited about tonights announcement? We have a feeling they were probably allowed to tell people.

For more information/tickets, please head to readingfestival.com or leedsfestival.co.uk.