Bellyache - Marian Hill Remix

In this song, Billie Eilish has a bellyache because she feels a little guilty (just a little) about murdering her friends and stashing their bodies in the back of her car. It's not was most 15-year-olds would write about, but Eilish was no ordinary 15-year-old. Even then, she was writing unusual and often macabre lyrics that were sometimes personal, but often in the guise of a character, in this case a serial killer. Eilish made it clear she was just having some fun in this song and harbors no bloodlust.

Eilish wrote "Bellyache" with her brother-producer Finneas. It was released as a single in early 2017 ahead of her first EP, Don't Smile At Me. By this time, she already had a record deal with Interscope thanks to her 2015 song "Ocean Eyes," which went viral in 2015. The EP kept her snowball rolling downhill, and by the time she released her first album, When We All Fall Asleep, Where Do We Go?, in 2019, she was more refined and well versed on how to handle the media.

Eilish made a video for this song that was directed by the Los Angeles team Miles and AJ. We see her on an empty road in the desert, wearing a yellow jumpsuit and pulling a wagon with two garbage bags as cargo. She seems a little unhinged, at one point pulling out a wad of cash and making it rain. At the end, when she encounters a cop, there's a standoff, which is how the video ends.