The fourth in a series of teaser clips for the forthcoming SLIPKNOT greatest-hits album, “Antennas To Hell”, can be seen below. The latest clip focuses on the band’s percussionist Chris Fehn .

“Antennas To Hell” is scheduled for release on July 17 via Roadrunner Records.

There is no word yet on which tracks will be included on “Antennas To Hell”, and if it will contain any previously unheard music or other bonus content.

As previously reported, SLIPKNOT will headline its own festival-style concert called Knotfest. The event will consist of two dates, on August 17 in Council Bluffs, Iowa and August 18 in Somerset, Wisconsin. In addition to the headliners, both days will include sets from DEFTONES, LAMB OF GOD, DETHKLOK, SERJ TANKIAN and PRONG. Also playing at the Iowa show will be THE URGE and DIRTFEDD, while the Wisconsin show will also feature CANNIBAL CORPSE, GOJIRA and THE DILLINGER ESCAPE PLAN. Tickets go on sale Friday (June 8).

Percussionist Shawn “Clown” Crahan said, “It’s all about having fun and bringing something to the world of rock ‘n’ roll, bringing it to the standard it used to be. It’s time for us to really engulf this idea known as Knotfest where we’re in control, we make a day devoted to our mindset, our ideas, the people that we want to play with, the people that we think our fans want to be around.”

Knotfest is being positioned as a “dark carnival experience,” and the event will feature circus tents, pillars of fire, amusement park rides, burlesque performers, fire-breathers, stilt walkers, drum circles made of junkyard cars, graffiti walls and even a SLIPKNOT museum.

Crahan promised, “When everyone leaves, their senses (will be) overloaded… because that’s what SLIPKNOT does.” He added that Knotfest could become an annual event whether SLIPKNOT appears or not.

SLIPKNOT will tentatively enter the studio sometime in early 2013 to begin recording its fifth album.