Clavería invited Cuevas to join the band, which had just lost two founding members, Iván Delgado and Shía Arbulú.

The recording of this soundtrack was a huge success across Latin America, and cemented the reputation of La Ley as one of the most important Chilean bands of all time.

Here, Cuevas played synthesizers, guitars, and vocals in the song "Insatisfacción", a rendition of the Rolling Stones classic "(I Can't Get No) Satisfaction", and in "Eres Mi Hogar".

In 2007, he shot an episode of the Canal Fox Latinoamérica series Tiempo Final, titled "The Autograph", where he plays a character called Beto.

His debut solo album, Miedo Escénico was released on September 23, 2008, and spun 3 hit singles: "Vuelvo", "Háblame", and "Un Minuto de Silencio".

A year later, in September 2009 he recorded a version of the George Michael classic "Faith", on the Buenos Aires soundstage of La 100 (99.9 fm).

[4] In May 2010, Beto released a version of the Violeta Parra classic, "Gracias a la Vida", produced by Humberto Gatica, and featuring stars including Miguel Bosé, Michael Bublé, Fher Olvera, Juan Luis Guerra, Shakira, Laura Pausini and Alejandro Sanz.

Beto was chosen as one of the coaches in the second season of talent show La Voz... México, along with Paulina Rubio, Jenni Rivera and Miguel Bosé.

[1] His family moved to Montreal, Quebec, Canada to escape Augusto Pinochet's dictatorship, so he also holds a Canadian passport.

Cuevas portrayed the character Padre Santiago in the 2005 Mexican film La mujer de mi hermano (English: My brother's wife).