Artemios "Demis" Ventouris-Roussos (Greek: Αρτέμιος "Ντέμης" Βεντούρης-Ρούσσος, Greek pronunciation: [arˈtemios ˈdemis venˈduris ˈrusos]. (English: /ˈruːsoʊs/; 15 June 1946 – 25 January 2015) was a Greek Egyptian then his family migrated to Greece and he became a Greek vocalist and performer who had an internationally acclaimed career, as a single recording artist and bandleader. As a band member he is best remembered for his work in the progressive rock music act Aphrodite's Child, but as a vocal soloist, his repertoire included hit songs like ‘’Goodbye, My Love, Goodbye’’, ’’From Souvenirs to Souvenirs’’ and ’’Forever and Ever’’.
Roussos sold over 60 million albums worldwide and became "an unlikely kaftan-wearing sex symbol".