Atlanta metallers Mastodon head up the latest raft of acts announced for this summer's Reading and Leeds festivals. The Blackout, Twin Atlantic and Pure Love - ex-Gallows man Frank Carter's new band - join them on the bill, among loads more. The events take place concurrently across the Bank Holiday weekend, August 24-26, and are due to be headlined by The Cure, Foo Fighters and Kasabian. Tickets for both events are currently on sale from www.aloud.com. See www.readingfestival.co.uk and www.leedsfestival.co.uk for the full list of confirmed bands.