Los Blops formed in Chile in 1970 when Eduardo Gatti (vocals and guitars), Julio Villalobos (guitars), Pedro Greene (drums), Andres Orrego (keyboards) and Juan Pablo Orrego (bass) performed covers (Beatles, Rolling Stones, Animals, Cream, Kinks) in a local club in Isla Negra, with additional changes in the band with the addition of members Sergio Bezard (drums) and Juan Contreras (flute and keyboards).
Their first LP was recorded in 12 hours on a two-track machine and produced by DICAP (Discoteca Del Cantar Popular). Their first LP includes a song that became a hymn that generations would continue to sing, "Los Momentos." Gatti and Orrego later reformed Los Blops in 1978, recording a single: "Los Momentos"/ "La Francisca," but they split again in 1980.