Limp Bizkit and Gallows have been added to the line-up for this year's Sonisphere festival in Knebworth.
The event, which runs from July 8-10, will also feature The Sisters Of Mercy's first UK festival appearance in 20 years.
Gojira, INME, Kids In Glass Houses and One Minute Silence have also joined the bill.
Sonisphere will be headlined by Biffy Clyro, Slipknot and the Big Four - Metallica, Slayer, Megadeth and Anthrax.
Other acts on the bill include Motorhead and Mastodon.
Tickets are on sale now. For more details and to buy Sonisphere festival tickets, check out Gigwise Gig Tickets.
For more information about Sonisphere and all next summer’s festivals, check out the Gigwise Festival Guide.
Sonisphere festival 2010 - Best Bits