Carefree is a cheerful, royalty-free track by American composer Kevin MacLeod, whose library has supplied background music for countless YouTube videos and online projects. Because the tune is so widely recognised and upbeat, distorted earrape edits of it became a favourite joke format on soundboards and short-form video, where the sudden volume is the punchline rather than the melody itself. The short length makes it easy to reuse, and its association with light, happy content keeps the loud version feeling playful rather than aggressive, which is why it remains a go-to prank sound.