Corey Taylor and Shawn Crahan will bring their side projects to Sonisphere 2009.
This year's Sonisphere festival will feature the UK debut of two Slipknot side projects.
Playing on the event's Bohemia Stage, Slipknot frontman Corey Taylor will play his first ever British solo performance.
Taylor said he is "very excited" to be part of the Sonisphere festival, which will be held August 1st and 2nd, and claimed his UK fans have waited "long enough" to experience it.
In addition, Shawn Crahan, better known as The Clown from Slipknot, will be debuting his rock project Dirty Little Rabbits to British audiences.
He commented: "I know all too well about how accepting and exciting UK audiences can be, so it makes sense that we’re bringing the art to them first."
Sonisphere's organisers also announced that The Chapman Family, Dinosaur Pile-Up, Fighting With Wire, Rolo Tomassi and Twin Atlantic have been added to the 2009 line-up.
Last month, it was revealed that Fear Factory will be reunited for Sonisphere 2009, with Dino Cazares and Burton C Bell playing their first shows since 2002.
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