Slipknot have booked themselves quite the little busy summer. With not only headlining Mayhem Fest and their own summer festival Knotfest the guys have decided to release a best of called Antennas From Hell.
The 2 disc set releases July 24th. Disc 2 will be the bands entire 2009 Download Fest performance.
This summer will also feature the release of the bands first mobile app Wear The Mask that allows fans to design their own mask and interact with each other.