 In the late 70s Arco Iris -minus Gustavo Santaolalla- moved to the United States to live in the mountains of California, where they have been involved in the jazz-rock and new-age music scene.Arco Iris founding member and frontman Gustavo Santaolalla would emerge, in the 1980s, as one of the artists and producers that aided the rise of Rock en Español (with Miguel Mateos, Charly Garcia, etc.