Roots of Guitarricadelafuente

José María Sanz Beltrán, Loquillo or Loco is a Spanish rock singer. He was born in Barcelona. Beginning in the 1980s, he performed as Teddy Loquillo, and then with the groups Loquillo y los Intocables, and later Loquillo y Los Trogloditas. He started out as a rockabilly artist, and then became more famous mixing pop, punk and rock. He played as a solo act as well as performing with the Trogloditas, but they broke up in 2008. Nowadays, he's a widely recognised solo artist in Spain. He also writes blogs on elmundo.es.

Extremoduro was a Spanish hard rock band from Plasencia, Extremadura. The band was led by Roberto Iniesta, also known as "Robe", who is often referred as "El rey de Extremadura". The name Extremoduro is a pun on the band's home region in western Spain, Extremadura, and may be translated as "extremely tough", "rough edge", or "hard extreme".