The Spanish participating broadcaster, Televisión Española (TVE), organised the national final Eurovisión 2005: Elige nuestra canción in order to select its entry for the contest.

Six entries ultimately qualified to compete in the televised final where a public televote exclusively selected "Brujería" performed by Son de Sol as the winner, receiving 24.2% of the votes.

As a member of the "Big Four", Spain automatically qualified to compete in the final of the Eurovision Song Contest.

It has also finished second four times, with "En un mundo nuevo" by Karina in 1971, "Eres tú" by Mocedades in 1973, "Su canción" by Betty Missiego in 1979, and "Vuelve conmigo" by Anabel Conde in 1995.

In 2004, it placed tenth with the song "Para llenarme de ti" performed by Ramón.

Eurovisión 2005: Elige nuestra canción was the national final organised by TVE that took place at the Estudios Buñuel in Madrid, hosted by Carlos Lozano, Patricia Pérez and Ainhoa Arbizu.

The six entries that qualified from the preceding semi-final competed and the winner, "Brujería" performed by Son de Sol, was selected exclusively through a public televote.

[14] According to Eurovision rules, all nations with the exceptions of the host country, the "Big Four" (France, Germany, Spain and the United Kingdom) and the ten highest placed finishers in the 2004 contest are required to qualify from the semi-final in order to compete for the final; the top ten countries from the semi-final progress to the final.