The music box is a cursed possession in Phasmophobia, the cooperative paranormal investigation game developed by Kinetic Games. It was added with the Cursed Possessions update in December 2021. When activated during a contract, it plays a melody that can prompt the ghost to sing and reveal its location, but improper use may trigger a cursed hunt. The recognizable tune spread through gameplay videos, streams, and horror compilations because players often capture tense or disastrous encounters immediately after using the item.