In one of the most purely heavy tours to hit the United States in 2012, Six Feet Under, Dying Fetus and Revocation graced New York's Music Hall of Williamsburg for crushing sets of death metal on the '18 Nights of Blood' tour.

Having recently supported Children of Bodom on their 2012 North American run, Revocation have been hitting the road for some of their career's biggest tours this year -- and rightfully so. The band is one of the world's best when it comes to technical and progressive death metal.

In fact, Revocation are so progressive, that the actual meaning of the track 'Conjuring the Cataclysm' has changed. During the band's tour with Bodom, frontman Dave Davidson told the crowd, “This song is about conjuring ancient demons, then getting drunk and f—ing partying with them. Then one of the hot chick demons has sex with you.” But at this latest show, Davidson revealed that the song is now about "doing cocaine and getting a weird h---job" from one of the demons. Either way, the band was in rare form.

The word "heavy" may be the most commonly used term when it comes to metal. With the countless acts practicing their craft within the genre, if given the choice to name the heaviest band on the planet, Dying Fetus would be one of the first bands that some to mind. With a shorter set time than their usual, Dying Fetus crunched as many tracks as they could into their performance, casting a unique possession over the New York crowd. Those who were brave enough ran into the the ultra-violent pit, where an incredible amount of aggression was displayed while the band unleashed tracks such as 'Homicidal Retribution' and 'Your Treachery Will Die With You.'

Closing out the night was Six Feet Under, fronted by former Cannibal Corpse vocalist Chris Barnes. In fact, Six Feet Under even played the CC classic 'Hammer Smashed Face' as well as closing with 'Stripped, Raped and Strangled.' The crowd showed their appreciation for both the covers and Six Feet Under's original tracks by tearing the venue up as the band delivered a set spanning their entire career.

Check our photos of Six Feet Under, Dying Fetus and Revocation at their June 11 show in Brooklyn, New York.

Six Feet Under, Dying Fetus + Revocation Photo Gallery