The three-day event featured performances from Coal Chamber, Fear Factory and the full lineup from The Summer Slaughter Tour - Arch Enemy, Born Of Osiris, Veil of Maya, The Acacia Strain, Cattle Decapitation and Beyond Creation.

Gwar will launch the 30 Years Of Total World Domination Tour on August 25 with guests Butcher Babies and Battlecross - which includes three Riot Fest shows - and now they've added an autumn run with Born Of Osiris and Battlecross. Canadian dates will see Cryptopsy in the lineup.

With newly-announced shows set to start October 7 in Cincinnati, guitarist Pustulus Maximus offers a preview of what fans can expect during the autumn run.

He says: "I have yet to grasp this concept of the internet and the spouting of self-important speeches by people in social media - the internet must die, so Gwar will kill it.