Effective period / Period of releases: 1976 - 1998

Members: José Manuel Zamacona, Johnny Ayvar

Mexican band (mix of cumbia & pop), created in the mid 1970s by the brothers Johnny (lead, drums), Bruno (bass) y Joaquín (percussion, vocals) Ayvar Catalán, with José Manuel Zamacona (lead vocals, guitar), Luis Monroy (guitar), and Joaquín Cadena (keyboards).
Óscar Pérez (keyboards), Eduardo (Lalo) Rincón (sax, flute), and other musicians joined later. After 2000, the band continued, but without any of the Ayvar brothers.