What makes When She Was Mine by Lawson notable?

'When She Was Mine' peaked at number 4 on the UK Singles Chart, establishing Lawson as a significant player in British pop rock. Its commercial success and emotional resonance helped define a period of melodic rock in early 2010s Britain, influencing similar bands emerging during that time. Released in 2012, 'When She Was Mine' was Lawson's debut single, marking their entry into the mainstream music scene after forming in 2009. The band had been building a following through live performances and independent releases, and this song catalyzed their commercial ascent.