5 Seconds Of Summer are an Australian band from Sydney, New South Wales, formed in 2011. The group consists of lead vocalist and rhythm guitarist Luke Hemmings, lead guitarist Michael Clifford, bassist Calum Hood, and drummer Ashton Irwin. They were originally YouTube celebrities, posting videos of themselves covering songs from various artists during 2011 and early 2012. They rose to international fame while touring with English-Irish boy band One Direction on their Take Me Home Tour. They have since released three studio albums and headlined three world tours.
5 Seconds Of Summer's musical style has been described as pop rock, pop punk, powerpop and pop. Rolling Stone magazine called them "emo-gone-pop". Matt Collar of AllMusic found a reminiscent of "90s punk-pop" and "2000s boy band pop" in their sound. John Feldmann of Goldfinger stated that, "this is the best pop-punk band I've ever heard".