On October 21, 2008, Aterciopelados released the album "Rio" ("River") on Nacional Records, aggressively building upon the creative momentum of "Oye". The album was recorded in Bogotá and mixed by Héctor Castillo (Brazilian Girls, David Bowie, Gustavo Cerati) in New York City. It is an impassioned, socially conscious record with the group's signature organic rock sound. The album's opener and title track is a call to action that finds Aterciopelados at a new level of creativity and musicality. It coincides with a proposed Colombian constitutional referendum that declares that access to clean drinking water is a fundamental right for all Colombians and provides for maintenance and preservation rights. "Musically and lyrically, the track 'Rio' is unlike any previous Aterciopelados song", Echeverri says. "I'm even singing in a different way than in the past. With this one, we reached an entirely new place."