5 Seconds of Summer (5SOS) is an Australian pop-rock band formed in 2011, comprising Luke Hemmings, Michael Clifford, Calum Hood, and Ashton Irwin. They gained international fame and are known for blending pop-punk energy with introspective songwriting. Their discography includes five studio albums, with 5SOS5 released in 2022. While members have pursued solo projects, the band remains active, with their latest single, "Lighter," released in March 2024.