"Monster" is a song recorded by American Internet personality and singer Gabbie Hanna. It was independently released for digital download on October 26, 2018, simultaneously with its encore titled "Monster (Reborn)". Both tracks were written by Hanna and Some Randoms, while production was solely handled by the latter. The lyrics of "Monster" explore the theme of losing friends and self-analysis, and the song prominently features Hanna belting.