

In an interview with Rolling Stone, SZA mentioned that "Music is coming out for sure", but stated that it may not result in an album, as of yet. SZA confirmed plans to begin working on her next album in January 2020. In the preview, SZA pole dances in the middle of a gas station. An extended snippet of the unreleased song, lasting for one minute, appears at the end, similar to how "Good Days" was teased at the outro of the one for "Hit Different". In March 2021, the music video for "Good Days" premiered on YouTube. The teased song did not have a title, so fans started calling it by two names: "Bloodstain" and "Shirt".

By December, the snippet spawned a viral dance challenge on video sharing application TikTok, and within two months it appeared in over 1.3 million videos SZA herself participated in the trend. Between the releases, on October 7, SZA posted a brief preview of an untitled song to her Instagram Story. In 2020, she released " Hit Different" (September) and " Good Days" (December), marking her first solo singles since Ctrl. Her next studio album was therefore highly anticipated, and she alluded to its completion as early as August 2019 during an interview with DJ Kerwin Frost. The album brought SZA to mainstream fame, and critics credit it with establishing her status as a major figure in contemporary pop and R&B music and pushing the boundaries of the R&B genre. Primarily an R&B album that deals with themes like heartbreak, it received widespread acclaim for its vocals and eclectic musical style, as well as the emotional impact and confessional nature of its songwriting. SZA released her debut studio album, Ctrl, in 2017. It reached the top 20 in Australia, Canada, Ireland, New Zealand, the United Kingdom, and the United States. SZA wrote the R&B song with producers Darkchild and Freaky Rob. In the lyrics, SZA sings of a former toxic relationship to which she is enticed to return. "Shirt" is a song that combines R&B with elements of trap music, incorporating glitchy hi-hat drums and Roland TR-808 beats.

Originally untitled, the song was given two names by fans: the official title and the alternative " Bloodstain". It was released through Top Dawg Entertainment and RCA Records on October 28, 2022, and teased two years beforehand its previewed snippets spawned a viral dance challenge on TikTok, a video-sharing application. " Shirt" is a song by American singer-songwriter SZA and the third single from her second studio album, SOS (2022).
