At the time of their live performance of "Mr. Brightside" at Glastonbury in June 2005, The Killers were enjoying a pivotal moment in their career. Their debut album, "Hot Fuss," had been released in June 2004 and had achieved significant commercial success, featuring hit singles such as "Mr. Brightside" and "Somebody Told Me." The band's performance at Glastonbury marked a significant milestone, reflecting their rising popularity and the impact of "Hot Fuss," which had solidified their place in the indie rock scene. Notably, "Mr. Brightside" became an anthem for the band, showcasing their signature sound characterized by catchy melodies and poignant lyrics. The festival appearance helped to further elevate their profile, leading to a burgeoning fanbase in the UK and beyond. The energy of the Glastonbury crowd during this performance is often remembered as a testament to the band's connection with audiences during this golden period of their early career.