[1] Breaking ties with their original concept as the hippie era waned worldwide by the mid-1970s, they continued actively interpreting romantic ballads with considerable success.
In the era of psychedelic rock and under the influence of American hippies of the late 1960s, a Mexican multidisciplinary counterculture movement called La Onda was born.
[3] Headed by Javier Martin del Campo, a band was formed in Guadalajara with the intention of interpreting contemporary popular songs of the era in their own style.
[8] The head office of Polydor Records sent the group five medals as recognition for their high level of sales in the Americas, United Kingdom, and Europe of their one big hit, "Nasty Sex".
[14][15] Adding to this was the emotional turmoil that the band members began to experience, unleashing a series of fights and disagreements that eventually led to changes in the lineup.
Lead singer Oscar Rojas grew weary of both Mexico city and the group environment, leaving the band permanently in late 1972 together with Bano and McLean.
Now part of a new record label (Discos Melody) with a new lineup of members that included: Jorge Gamiz (vocals), Servando Ayala Bobadilla (keyboard), Adrian Cuevas (bass), Antonio Cruz (drums) and Javier Martin del Campo (guitar), the group achieved a revival in their fortunes with romantic songs that placed them once again on the Mexican pop charts.
"Mi forma de sentir" "The Way I Feel" (1978), written by Martín del Campo, was a moderate hit and allowed the group to find favour once again in the pop charts.