It started out with a kiss, how did it end up like this? Since its release in 2003, "Mr. Brightside" by The Killers has become one of the defining rock songs of the 21st century, celebrated for its driving guitar riffs, urgent vocals and emotionally charged lyrics. Its story of jealousy and heartbreak resonates across generations, while its explosive chorus invites audiences to sing along at concerts, parties and sporting events. Despite never reaching the top of the charts in many countries upon its initial release, the song has enjoyed remarkable longevity and has cemented its place as a timeless anthem that continues to connect with both longtime fans and new listeners.