[1][5] Castillo attended Clear Falls High School, during which she attempted to teach herself Spanish, her father's native language, by practicing with friends and family.

[8][9] These videos received millions of views, yet knowing that she did not want to become cast as an "ASMR artist", Castillo also released original music.

[1] The two began working together, with Castillo releasing her debut EP, Antisocial Butterfly in November 2019 through Romans' label Chosen People.

[20] The staff of Billboard included Castillo in their list of the "22 Latin Artists to Watch in 2021", highlighting her bilingualism and nothing she has the "potential to grow in many spaces".

[11] Castillo was included in the lineup for Coachella 2022, which ran in late April of that year;[26] she was also the co-opening act for Coldplay on May 8, 2022 during their Music of the Spheres World Tour, alongside H.E.R.

[11][28] In 2023, Castillo released her sixth EP, Malos Hábitos, supported by the singles "Éxtasis"[29] and "Luna de Miel".