The group was influenced by the arrival of the so-called "British Invasion", which had taken over the United States by storm, the latter a country most of their members had visited on either school-sponsored, family, or personal vacation trips, the two previous summers.
In the next two years, classics from the Beach Boys, The Young Rascals, Donovan and the Rolling Stones became a part of their repertoire, including the latter group's first two big US and UK hits, "Get off my cloud" and "Time is on my side" and starting in the summer of 1965, "Satisfaction".
The Beatles, by then the world's most successful artists, were also influential, although it was mostly covers they had done themselves of early US rockers, like Chuck Berry's "Rock and Roll Music", which ended up becoming part of "Los Hang Ten's" play list.
Conversely, because "Odeon" released only a relatively small print, consisting of 500 copies, the single has become with the passing of time, a coveted music memorabilia item for both Peruvian and Latin American early rock aficionados alike.
Then in mid-1967, drummer García-Sayán recruited a close friend, the then future United Nations official and Nicaraguan Ambassador to Brazil and Perú, Guillermo F. Pérez-Argüello, (b. Lima, 1950), to join the band and sing additional songs, mostly R&B and early Rock and Roll classics.