For months organisers have been teasing the historic performance, which will take place 400 feet underground, and now they've announced Moreno will be the musical attraction.

His band is among the 177 acts taking part in the festival, but Chino has something special planned - an acoustic set in what will become one of the planet’s most unique settings, the dormant magma chamber of the Thrihnuagigur volcano.

The event will mark the first time in history an artist has performed publicly inside a volcano.

Only 20 paying ticket holders will witness the magical show, which will also feature a set from Icelandic act Snorri Helgason.