Soundgarden, Mastodon and Channel Zero were also on the bill

Broadcast video of Mastodon's full set has surfaced online.

Black Sabbath, Pantera, Slayer, Metallica, Mastodon, Gojira, Sabaton, Fear Factory, Ihsahn, Tesseract, Architects, Cancer Bats, Meshuggah, a FREE CD and more all feature in the new issue of Metal Hammer, out next week! Order your copy inside right now...

An unholy trinity of Opeth, Mastodon and Ghost descended upon the Gibson Amphitheater for an evening of progressive and theatrical metal. Opeth are touring behind their latest album Heritage while Mastodon (who recently covered Feist) are promoting The Hunter. Those who arrived early basked in the pure evil of Ghost who rocked and shocked the [...]

The Blackout, Santigold, The Joy Formidable also join the August bash's bill