Slipknot self-confirm Download slot
Masked rockers reveal date on their website
Photographer: Sara Bowrey06 February 2009
As predicted on Virtual Festivals, the masked rockers will play the Donington Park event when it takes place
The band, who announced their appearance on their official website, will also play Rock Am Ring and Rock Im Park in Germany, Austria's Nova Rock, Roskilde in Denmark and Hove Festivalen in Norway.
Other acts rumoured to be performing at the metal and rock festival includes Limp Bizkit, Def Leppard and The Prodigy.
Click here for the full Download rumours and line-up.
Download Festival 2009 will take place at Donington Park, Castle Donington in Leicestershire from 12-14 June.
Tickets for the festival are on sale now priced at £135 for an early bird camping pass.
Click here for all Download 2009 tickets.