Stupida was written by Diego Calvetti, Federica Camba and Daniele Coro. Alessandra Amoroso first performed this song in the last episode of the television talent show Amici di Maria De Filippi, which she won. The song was released for digital download and for radio airplay on 27 March 2009. The single debuted in the charts at number 22 and then climbed to number one. In May 2009 a remix of Stupida was released by Emiliano Pepe featuring La Pina. On 2 September Stupida was song of the week for listings magazine TV Sorrisi e Canzoni. It was certified platinum for solling over 30,000 copies.

The music video for Stupida was filmed in Verona and was inspired by the movie Groundhog Day. In the video Alessandra Amoroso repeats her birthday, 12 August, but no-one is aware of her presence. Towards the end of the video the dark bluish tones change to more natural and bright colours as time begins to flow normally again.

Estupida (English: Stupid) is India's first single from her 2010 album, Unica. The song was released in two versions, a salsa version as well as a ballad version. The salsa version was released first on, 23 February 2010 while the Ballad was released three months later on 25 May 2010. Music videos were recorded and released for both versions of the song. The salsa version was released on 23 February 2010 makes it Unica's. The salsa version debuted at #10 on the tropical charts and quickly made it to the #1 position in just a matter of weeks. A music video was also released for the song which was actually filmed in Brescia,Italy. At the 2011 Lo Nuestro Awards, India's cover received a nomination for Tropical Song of the Year.

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