Her 2023 single "My Barn My Rules", which became a popular sound on TikTok, attracted attention after Arielle Free was suspended from BBC Radio 1 for a week for decrying it on air, and later appeared on Dazed's "20 best tracks of 2023" list.
HorsegiirL hides her identity behind a chestnut-coloured horse head mask;[1] Daniel Rodgers of Vogue wrote in November 2023 of being shackled by an "NDNeigh" to not ask "serious, journalistic questions about [her] provenance [or] distinct biological make-up", but noted that she was Berlin-based and that she had described herself as "half-horse, half-human".
[11] The success of "My Barn My Rules" prompted HorsegiirL to release a video for the single in September 2023;[12] later that year, the song appeared on Dazed's "20 best tracks of 2023" list.
[16] Struggling with the attention she was receiving, she went on holiday in Ecuador, staying near Cotopaxi, and attended an ayahuasca ceremony; after returning home, she released "Obsessed" in April 2024, which described infatuation, and was produced by A. G. Cook and Tom Demac.
[18] In October 2023, Interview magazine described her musical style as happy hardcore,[19] and in February 2024, Arielle Richards of Vice described "My Barn My Rules" as "yeehaw-meets-hardstyle" and a sample of a European set she had seen on TikTok as gabber.