In June 2018, British post-punk band IDLES—at the peak of the Brutalism tour, their debut album released in March and marking a breakthrough with raw, aggressive sound and lyrics on class struggle—performed at Rock Werchter, one of Europe's oldest festivals launched in 1975 in Werchter, Belgium, as a platform for alternative music emphasizing indie and rock among 90,000 at Festivalpark. Their 45-minute main stage set on July 8, captured in high quality, embodied their first major European tour climax, where Lee Kiernan's chaotic riffs merged with Joe Talbot's emotive delivery to evoke resonance under summer sun. Featuring tracks like "Colossus" and "1049 Gotho", this show highlighted IDLES' role as British post-punk innovators, turning the festival grounds into a realm of collective unity.