A Mad Cool 2026 lineup poster is circulating on Reddit
A poster shared to r/outsidelands shows a four-day Mad Cool Festival in Madrid running July 8–11, 2026 with a stacked roster printed across each day. The image — which has been widely reposted across festival forums — lists major headliners including Foo Fighters, Florence + The Machine and Twenty One Pilots, with a Saturday bill that reads like a British indie dream: Nick Cave & The Bad Seeds, Pulp, The Black Crowes and David Byrne among them.
- Wed 8 July — Foo Fighters, Moby, The War On Drugs, Wolf Alice
- Thu 9 July — Florence + The Machine, Jennie, Lorde, Teddy Swims (plus Zara Larsson, Charlie Puth and more)
- Fri 10 July — Twenty One Pilots, Kings of Leon, Pixies, Halsey (also A Perfect Circle, Interpol and friends)
- Sat 11 July — Nick Cave & The Bad Seeds, Pulp, The Black Crowes, David Byrne (with Kasabian, The Vaccines, Matt Berninger and others)
Beyond the rock and indie core, the poster pulls in electronic and DJ names — Richie Hawtin and Nina Kraviz are listed in a late-night lineup — plus a long undercard of rising and festival-ready acts. The visual reads like a full festival poster: stage blocks, small-type undercard names and a Madrid skyline shot at the bottom.
The Reddit thread has the usual festival-board mix: excitement at the bill’s depth, suspicion about formatting and skeptics calling it a well-crafted mock-up. Whatever the verdict, the poster is driving conversation about summer 2026 plans — and would be a huge European headline bill if confirmed.
Extra Chill is tracking the story. We’ll post updates the moment Mad Cool or the artists confirm dates and ticket details. For now, treat this as the festival circuit doing what it does best: leaks, hot takes and instant imagination about who you want to see on a Madrid summer night.
Source: https://www.reddit.com/r/OutsideLands/comments/1otjbp0/a_perfect_example/