Sleep Theory in Barcelona: One Night of Metalcore at Razzmatazz 2
Sleep Theory are coming back to Spain, and this time they’re headlining. The Memphis-based band — one of the most talked-about acts in modern metalcore — will play a single club date this summer. Spanish audiences already know them: Sleep Theory made their debut in the country as support for Falling In Reverse, playing major venues in Madrid and Barcelona. The response was clear. Now they return on their own terms, with their own set, and on a stage that’s entirely theirs.
Founded in 2019 and fronted by former military man Cullen Moore, Sleep Theory broke through with the single “Another Way”, which gained traction within hours of release. Their debut album “Afterglow” built on that momentum, taking the band across the United States and onto the stages of festivals such as Download, Graspop Metal Meeting and Sick New World. Their sound sits at the intersection of nu metal, metalcore and rock, with vocal hooks shaped by R& B — a combination that hits hard both on record and live.
On 22 June 2026, Sleep Theory play Razzmatazz 2 in Barcelona. This is their only Spanish date. Support comes from Astray Valley, a Catalan metal act with strong roots in the national scene, led by vocalist Clau Violette. The show is part of the Route Resurrection series.
