Madness erupted on the final day of Mad Cool Festival 2026 as rock royalty Kings Of Leon and Twenty One Pilots tore up the Iberdrola Music arena in Madrid, leaving a trail of entranced fans in their wake. With an attendance of 53,000 music lovers, the festival continued to build towards its thrilling conclusion, featuring a diverse line-up that had something for everyone.
Kings Of Leon brought their current tour full circle with a blistering performance that left the crowd breathless. Frontman Caleb Followill got the Spanish party started by sharing his delight in the city – and even giving the lowdown on Spain's recent football triumph. His bandmates fired on all cylinders, delivering a fitting finale to their tour and cementing their status as one of the world's top live acts.
Twenty One Pilots sent shockwaves through the festival with an electrifying set that left fans gasping for air. Lead singer Tyler Joseph was hoisted aloft by adoring fans in the front rows, a testament to his band's unbreakable bond with their devoted following – which swelled in size after their Mad Cool appearance.
The Pixies proved why they're an alt-rock institution, serving up a high-octane performance that saw them careering from 'quiet' to 'LOUD-quiet-Loud' mode at breakneck speed. Classics like 'Debaser' and a show-stopping cover of David Lynch's 'Twin Peaks' track 'In Heaven (Lady in the Radiator Song)' left the crowd pining for more.
But it wasn't just the big names that stole the show – rising stars Holly Humberstone, Sigrid, Karen Dió and Cliffords all brought their unique energy to the stage. British singer-songwriter Humberstone's heartfelt performance won hearts, while Norwegian pop sensation Sigrid's infectious beats got everyone moving.
Interpol proved they're still a force to be reckoned with, weaving classic tracks seamlessly into material from their new album 'This Mirror Weighs A Ton'. Frontman Paul Banks even managed to get the crowd singing along in fluent Spanish – a testament to the band's enduring influence and artistic evolution within the post-punk revival scene.