Known for her references to heartbreak, breakup, drugs and sex in her music, Tove Lo makes a perfect fit for a show like Euphoria. Prior to its inclusion on Dirt Femme, “How Long” was released as part of the soundtrack to the second season of the HBO original series.

The song is briefly featured in a scene during episode four, “You Who Cannot See, Think of Those Who Can” and it borrows inspiration from the storyline of characters Maddy and Nate, and the latter’s infidelity. According to Lo, it’s about “love, betrayal and denial.”

In 2019, Tove Lo foreshadowed her appearance in the Euphoria universe during a “Would You Rather?” game with The FADER. When asked if she would prefer to create a TV show for her character Sunshine Kitty or write a soundtrack song, her choice was the latter:

I think I would do music to the [soundtrack], ‘cause making music is my favorite thing. […] I think something in the world of Euphoria mixed with Superbad."

The Swedish singer announced the release of “How Long” on January 24, a few days after teasing the title of the track on TikTok and Instagram while on the set of its music video, which premiered on February 10.