Since his first appearances on the television show Menuda Noche on Canal Sur TV of Andalucia, a friend of Abraham's family posted on YouTube videos of his performances, which soon enjoyed great popularity and caught the attention of executives of EMI Music Spain.

In early 2009, when he was ten, Mateo signed a recording contract with EMI Music Spain and released in December of the same year his debut self-titled album.

[1] The album, recorded in Madrid and produced by Jacobo Calderon and Jose Luis de la Peña, contains twelve songs.

Abraham and Caroline recorded for the album a Spanish version of Badfinger's "Without you", the song has also been covered with great success by Mariah Carey.

To promote the album, Mateo toured through several cities in Spain and performed in Spanish radio and television shows, including the popular television programs Mas que baile, Tu si que vales, the show of Maria Teresa Campos, and the Christmas Eve Special of the Telecinco channel.