The iPhone ringtone became one of the most recognisable phone sounds in the world after Apple made its bright marimba melody the default alert on the original iPhone. As iPhones spread globally, the tune moved from pockets into films, television and online videos, where audiences instantly understood it meant an incoming call without any explanation. Creators later reused it as a short meme sound because that instant recognition makes it perfect for jokes about interruptions, missed calls and people who never answer. It remains popular because almost everyone has heard it in real life.