Their first performance before a live audience was on Radio Barcelona; they wanted to be called The Dynamic Boys, but the show host, Enrique Fernández, said he did not speak English and introduced them as Dúo Dinámico, a name the musicians accepted.

From then on, their ascent was spectacular, and they frequently topped the Spanish charts throughout the 1960s with hits like "Quince años tiene mi amor", "Quisiera ser", "Perdóname", "Bailando el twist", "Mari Carmen", "Esos ojitos negros", "Amor de verano" or "Mi chica de ayer".

[a] The song was originally going to be performed by the duo's friend Joan Manuel Serrat, but he insisted on singing in Catalan, something that Franco's regime would not allow.

After the sales failure of their 1972 album Mejor que nunca, recorded in London with the collaboration of George Martin, the duo decided to retire, but they kept composing for other artists such as Camilo Sesto and Nino Bravo, and producing for Julio Iglesias, Miguel Gallardo or José Vélez.

[2] On 21 September 2007, the jukebox musical Quisiera ser, featuring 24 hits of the Dúo Dinámico, premiered at the Teatro Nuevo Apolo in Madrid.