In 1997 the band went to work in their follow-up album that was recorded at NRG Studios in Hollywood, California. The result was the album titled ¿El Concepto? released on June 16, 1998. It included a version of the song "No voy en Tren" from Argentinean singer Charly García. In 1998, during the promotion for the album, Ricky left the band after some differences with guitarist Tito Rodríguez. Also, the band was dropped from Polygram.
