The Killers' 'Mr. Brightside' is a statistical anomaly in the world of hit songs. Released in 2003, it reached only number 10 in the UK and number 10 in the US. However, its longevity is unrivaled. In the UK, it has spent over 400 weeks (more than seven years) on the Official Singles Chart Top 100, a record for any song. It is estimated to be streamed over 1.2 million times every week in the UK alone. The song was the first one the band ever wrote, with lead singer Brandon Flowers penning the lyrics after discovering his girlfriend was cheating on him at a bar in Las Vegas. The song’s driving energy and relatable theme of jealousy have turned it into a 'modern anthem' that is played at almost every British wedding and party. It is widely considered the most successful 'cult hit' that transitioned into a mainstream permanent fixture.