[6] Almost all of the reviews "Milionària" received from the international press were positive and praising the singer for singing in her native language, Catalan, despite its relative low profile and recognition worldwide.

[7] A Rolling Stone review, titled "Rosalia swims in money and sings in Catalan," saw Suzy Exposito opine: "If we've learned anything from Rosalía this year, it's that she's not afraid to take chances.

[...] Now [...] the international pop heroine briskly sings not in Spanish, but in Catalan — the language native to her home of Barcelona.

"[8] Pitchfork named "Milionària" as a best new song and said that her two new tracks "return the Spanish singer to her brand sui generis of postmodern flamenco".

Spanish online music magazine Vinilo Negro reported that "Rosalía will debut in the next list of songs in Spain with only 30 hours of counting with "Milionària".

The singer said that the video, which was directed by Catalan artist Bàrbara Farré, was inspired by the "TV contests that she usually sees with her grandmother".