What makes Post Break-Up Sex by The Vaccines notable?

'Post Break-Up Sex' quickly gained traction, reaching number 55 on the UK Singles Chart and earning praise for its infectious energy. The song solidified The Vaccines’ presence in the early 2010s indie rock revival, influencing a wave of similar bands and garnering critical acclaim for its relatable themes. Released as The Vaccines' debut single in January 2011, 'Post Break-Up Sex' marked the band's entrance into the UK music scene. This track helped establish their sound, which combines catchy hooks with a raw punk ethos, setting the stage for their subsequent debut album 'What Did You Expect from The Vaccines?' later that year.