The group was started in the wake of an earlier band Los Gatos Salvajes, who had shared two the same members, in 1967.

The following year they went on tour around the Southern Cone, and then released their 3rd album Seremos amigos (1968), permeating psychedelic rock during its height.

[1] The band's next effort after a short hiatus, Beat N°1 (1969), featured the addition to the group of Pappo.

His rocking blues style with Litto Nebbia's more classical melodic approach at times made the album uneven, but also created quite dazzling passages of music that can be considered one of the earliest recordings of progressive rock, previewing the rise of the genre in the 1970s.

Los Gatos disbanded after a last batch of concerts, with Nebbia kicking off his solo career.