She first gained national recognition in 2017, placing as the runner-up in the revival series of the Spanish reality television talent competition Operación Triunfo.

Dubbed as the "Spanish Princess of Pop", throughout her career, Aitana has accumulated five number one songs in her home country: "Lo Malo", "Teléfono", "Vas a Quedarte, "Gran Vía", and "Mon Amour".

[18] Even though "Lo malo" hadn't been selected by the public to represent the country, it became an instant hit in Spain, topping the charts for five non-consecutive weeks and being certified 5× platinum.

[28] Written alongside Colombian band Morat, it became her third number-one hit in Spain and was nominated for Best Spanish Song at the 2019 LOS40 Music Awards.

She also released an illustrated book, became an ambassador for Stradivarius, took part of a Coca-Cola Christmas campaign, did a cameo in Skam España and presented Bad Bunny alongside Pons at the 19th Annual Latin Grammy Awards.

[34] In April she collaborated with Morat on "Presiento" and in May with former One Direction member Zayn in the revamped version of "A Whole New World" for the live action film of Disney's Aladdin.

It debuted at the top of the charts, was certified Gold in its first week and scored a Latin Grammy nomination for Best Pop Vocal Album at the 2020 gala.

[38] Thanks to this work, Aitana was nominated for Best New Artist at the 20th Annual Latin Grammy Awards, where she also performed "Mi Persona Favorita" alongside Greeicy, Nella and Alejandro Sanz.

On 18 December 2019, Aitana released "+ (Más)", featuring Cali y El Dandee, the lead single of her upcoming second studio album.

[45] "+" achieved great commercial success in Spain, spending nine weeks at the country's top ten chart, and hinted a musical shift of Aitana to pop rock.

[46] In April 2020 she collaborated with Spanish singer David Bisbal on the duet version of his track "Si Tú la Quieres", which became a twenty hit in Spain.

[48] In May, Aitana announced that she would be collaborating with other musical acts throughout the year as part of a droplet era prior to the release of her sophomore record.

[51][52] The second single of her upcoming album, "Corazón Sin Vida" was released on 2 October, featuring vocals by Colombian singer Sebastián Yatra.

[61] A second dropplet era started in April 2021 with the release of the promotional single "Ni Una Más", dubbed as a "feminist anthem".

[63][64][65] The latter one peaked at number one in Spain and held the position for six weeks, becoming Aitana's best chart performing single since 2018's "Vas a Quedarte".

[69] "Formentera", a duet with Nicki Nicole, "En El Coche", and "Otra Vez" were released during 2022 as singles off her newest album.

Aitana was also part on the forthcoming records of Amaia, Cali y El Dandee, Melendi, Sangiovanni, Sebastián Yatra and Pablo Alborán.

[70][71][72] Later that year, she starred as aspiring singer Candela in the Disney+ musical romantic drama La Última alongside Miguel Bernardeau.

[73] The five-episode television series follows Candela's relationship with aspiring boxer Diego (played by Bernardeau), which becomes strained after her career begins to overshadow his.

Aitana will also star alongside Fernando Guallar in the upcoming domestic film 2023 adaptation of Un peu, beaucoup, aveuglément, directed by Patricia Font.

In 2018, Aitana became the youngest ambassador of multinational clothing company Inditex released a limited edition of a T-shirt titled Pa' Mala Yo with Stradivarius as part of the promotion of her debut single "Lo Malo".

[80][81] During the fall, she released an illustration book titled La Tinta de Mis Ojos through publishing house Alfaguara.

[99] Following her contract with Universal Music, in October 2018, Aitana left Sant Climent de Llobregat and moved alone to an apartment in the Fuente del Berro district in Madrid owned by the Spanish actress Blanca Suárez.

[100][101] In 2018, she ended her relationship with childhood boyfriend Vicente Rodríguez and began a romantic relation with Operación Triunfo companion Luis Cepeda, which caused a lot of controversy due to the 10-year age disparity.

[108] Borja Terán, from 20 Minutos, wrote, in September 2021, an article on the attitude of the singer towards the public and journalists, both in televised and written interviews, where he highlighted her "authenticity" and compared her with folkloric singers of yesteryear for "sharing her experiences with that generosity that seduces, because she gives details without caring to share them with the viewer, so the public feels involved in her life, because she narrates it without apparent snobbery, without any kind of complex or moral superiority".