Technical Issues Disrupt Gracie Abrams and Iggy Pop Sets at Mad Cool Festival Opening with 50,000 Attendees, Muse Performs Strongly

The Mad Cool Festival 2025 in Madrid experienced a troubled start on its opening day as technical difficulties caused sound outages during performances by Gracie Abrams and Iggy Pop on July 10. These issues affected the two main stages, leading to interruptions that frustrated attendees. Despite the disruptions, the British trio Muse delivered a strong performance that helped stabilize the event. Approximately 50,000 people attended the first day of the festival. Festival organizers assured the public that normal operations would resume for the remaining days. Subsequent days featured performances by artists such as Nine Inch Nails, Alanis Morissette, Noah Kahan, Future Islands, TSHA, Olivia Rodrigo, Justice, Finneas, Girl In Red, and Tanner Adell, maintaining the festival's momentum.