Halsey recorded this version of Could Have Been Me for the Sing 2 soundtrack, where it is performed in the film by Porsha Crystal, the confident young wolf voiced by Halsey. The song itself was originally a rock hit by The Struts, but the Sing 2 arrangement turns it into a polished pop showstopper built around its chorus. Fans clipped that chorus for edits, singalongs and character tributes, and it remains popular because the hook is instantly recognisable and works as a shorthand for ambition, regret and finally stepping into the spotlight.