Impregnated with critical acclaim upon release, multiple media outlets marked it as "one of the biggest pop culture moments of the year".

[1][2] The style of album cover and the specific shade of green became a viral sensation after a "Brat generator" tool surfaced online that allowed users to replicate the cover with their own custom text, which was used during the presidential campaign of Kamala Harris in the United States, during the 2024 United Kingdom general election, and to promote the success of the Ultra Low Emission Zone scheme in London.

Brat Live, which would see performances of the upcoming record, and Partygirl, which would replicate her previous Brooklyn-based Boiler Room warehouse set.

Partygirl sets were booked in Brooklyn, Barcelona, London, Mexico City, São Paulo, Pilton (as part of Glastonbury), and Ibiza.

[9][10][11][12][13] The Brat Tour was later expanded into 2025, visiting selected indoor arenas and music festivals throughout Oceania, Europe, and North America.