Iceland's Secret Solstice is pushing boundaries again this year, taking the festival deep inside the Thrihnukagigur volcano for a one-off performance.
Following last year's party inside a glacier, this one on June 18 is a world's first, featuring a performance by a "well-known international act" for just 20 people 400 feet down inside an inactive magma chamber.
It's not cheap mind, costing £1380 which includes entrance, helicopter transport from Icelandic capital Reykjavik, refreshments and a VIP ticket for the main festival from June 17 to 19. So not too bad at all, really.
Secret Solstice’s director Fred Olafsson said: “I will say that it will be an acoustic performance by a very famous name, and we promise guests will be impressed when we finally make the big reveal.”
Just in case you're wondering about it erupting, don't worry. The last blowout was when the Egypt’s Great Pyramid of Giza was built. If you're history knowledge isn't quite up to scratch, construction started in 2560BC!
Head here for tickets.
[Photos from left to right: Vilhelm Gunnarsson, Lurie Belerushi, Evelina Kremsdorf]
Dave Turner is Mixmag's Digital News Editor, follow him on Twitter