Knebworth Park festival; SONISPHERE, have announced 7 more bands to their line-up. Airborne, Slayer and Alice in Chains are set to join headliners The Prodigy, Iron Maiden and Metallica for the three day bash next summer.
Also joining the bill are Mastodon, Ghost, Kanivool and Gojira.
Sonisphere is returning next year after a two year hiatus with a celebratory 40 years of festivals at Knebworth. Acts including Linkin Park, Red Hot Chilli Peppers, Slipknot and Metallica have all played the venue in recent years. This years festival is scheduled to take place between 4th-6th July.
Tickets are on sale now with more information available at sonisphere.co.uk