In the summer of 2013 Signature Brew collaborated with Grammy-winning metal titans, Mastodon.

The Atlanta heavy-weights took part in a beer tasting session backstage at Leeds Festival which has now transcended into the stuff of legend. If you want the full story, you'll have to ask us, but we can tell you all about the resulting beer – a double black IPA of suitably epic proportions:

“Rumbling smoky notes are offset by the elixir of misbehaving punchy hops. Mosaic and Magnum hops to the front, with Carafa Special 3 Malt and Pale on the baseline. The band wanted to create a ‘pallet crusher’ and that’s certainly what has been delivered. A beer for enjoying slowly, letting the bombardment of flavour and intensity hit your tongue and explode with every sip.”