After settling in Greece, Roussos participated in a series of musical groups beginning with The Idols when he was 17, where he met Evangelos Papathanassiou (later known as Vangelis) and Loukas Sideras, his future bandmates in Aphrodite's Child [REF].
After Aphrodite's Child disbanded, Roussos continued to record sporadically with his former bandmate Vangelis.