"Old Me" is a song by Australian pop rock band 5 Seconds of Summer, released on 21 February 2020 originally as the first promotional single from the band's fourth studio album Calm, before being released to radio on 6 March 2020 as the album's fourth single. The song was written by Luke Hemmings, Ashton Irwin, Alexandra Tamposi, Andrew Wotman, William Walsh, Louis Bell, Brian Lee and Andre Proctor... Wikipedia