Working with drummer Carlos Torero (formerly of Radio Futura), bassist Mc Cartney (formerly of Sex Museum), and guitarist Mario Alvarez (of Popels), Diez put together Cooper's first album, Fonorama, which was released on the Madrid, Spain-based label Elefant in late 2000. Cooper spent the following year touring in support of the album, putting in appearances at several Spanish indie music festivals (ContemPOPranea, Benicassim, BAM, and Lemon Pop). After a brief hiatus, Cooper returned in 2003 with a new single, "747"; another single, "Oxidado," was released the following year. The tracks from these two releases, in addition to three new tracks, were released as a part of Cooper's sophomore full-length, Retrovisor, which was released in Spain as 2004 came to a close. Cooper released two new EPs, 2006's Dias de Cine and 2007's Guárdame un Secreto, over the course of the next four years; the latter peaked at number two on the Spanish singles charts the week it was released. Cooper's next single, 2008's "Lemon Pop," did even better, holding the number one spot on the Spanish singles charts for seven consecutive weeks following its release. Cooper's third full-length, Aeropuerto, was released on Elefant the following spring. ~ Margaret Reges