Sonisphere Knebworth Festival Cancels Adam Lambert's 'Queen' Performance

According to USA Today, the Sonisphere Knebworth festival in Stevenage, England has been cancelled. The festival was to include 'American Idol' star Adam Lambert as frontman for the legendary rock group Queen. 

The festival, which was to run from July 6 - 8 and include performances by Kiss and Marilyn Manson, will be cancelled due to "unforseen difficulties." A statement on the festival's website reads, "It is with very heavy hearts and much regret that we announce the cancellation of Sonisphere Knebworth 2012. Putting the festival together in what is proving to be a very challenging year was more difficult than we anticipated. Unfortunately circumstances have dictated that we would be unable to run the festival to a standard that both the artists and that Sonisphere's audience would rightly expect."

According to the report, other Sonisphere festivals, including those in Poland, Spain and Swizterland, will go on as planned. It is unclear how the news will impact the touring plans of other bands on the roster including Evanescence, Faith No More, Flogging Molly, Mastodon, Andrew W.K., Incubus and the Darkness.

As of now, neither Lambert or the surviving members of Queen have commented on the festival's cancellation.