Eventually they decided to form a vocal group named Voces y guitarras ("Voices and Guitars") with folk and spiritual music and The Beatles as their influences.

They spent a year performing around their hometown before sending a demo cassette to producer Juan Carlos Calderón in Madrid.

Javier Garay, who had previously belonged to Voces y Guitarras, rejoined the group that year after serving in the Spanish army in Africa.

It was subsequently released in German (Das bist Du, or "You Are That"), French (C'est pour toi, or "It Is For You"), Italian (Viva noi, or "Long Live Us"), and Basque (Zu Zara, or "You are").

In 1984, the lead singer, Amaya Uranga, left the group to pursue a solo career,[2] and was replaced by Ana Bejerano, with whom Mocedades recorded three more albums for CBS.

For the third album, also José Ipiña and Carlos Zubiaga had left the group, and had been replaced by Iñaki Uranga, one of the youngest brothers of the family.

They started appearing on television again but Izaskun had a car accident in 1999 which forced her to stay in bed for two years during which time the group stopped performing.

Due to the lack of work, Idoia, Arsenio and Fernando left Mocedades, while José Antonio and Javier patiently waited for Izaskun's full recovery.

In 2001 Mocedades came back, recruited Luis Hornedo and Iratxe Martinez, and started performing live concerts in Spain and Latin America with some success, while they promoted themselves on the Internet.

Work on the album was halted, however, due to the sudden departure of Rosa Rodríguez and Fernando Gonzalez from the group at the end of 2012.

Meanwhile, the original Mocedades continued with Javier Garay, Luis Hornedo, Begoña Costa, Aitor Melgosa and new member Icíar Ibarrondo, and they began recording a new album in July 2014.

In the movie Tommy Boy, there's a scene in which Chris Farley and David Spade sing the original Spanish version of "Eres Tú".