July 8 2011 - The third Sonisphere music festival officially kicked off in Knebworth today. Fans were treated by performances from "The Big 4" Anthrax, Megadeth, Slayer and Metallica.
It marked the first time they had played together in the United Kingdom. Other performance's include Japanese Voyeurs who opened the Bohemia Stage.
You can see photos from the day one of the festival below and more on Gigwise over the weekend.
For more information about Sonisphere and all this year's summer festivals, check out the Gigwise Festival Guide.
You can keep up to date with all the latest news from Gigwise by following us on Twitter and liking us on Facebook.
Previous
Next
Coachella Festival 2012: The Must-See Acts 
Bestival Festival 2011: Pop Stars, Rock Stars And Divas Fancy Dress Photos
Bestival Festival 2011: The Best Bits In Photos.jpg)
Bestival Festival 2011: Photos From Day Three
Sonisphere festival cancelled, confirm headliners Queen
Glassjaw, Hundred Reasons for Sonisphere 2012 
Sonisphere Tickets On Sale Today (February 23) 
Mystery musicians revealed: unmasked and no make up
The sexiest women in music: the 30+ edition.jpg)
The many faces of Jessie J: volume two
