Neil Young - Canada
Joni Mitchell - Canada
Jorge Ben - Brazil
Kanda Bongo Man - Congo
Yothu Yindi - Australia
Mynta - Sweden
Youssou N'Dour - Senegal
Baaba Maal - Senegal
Uncle S you seem to have a pop rather than rock sensibility but there was a massive Krautrock scene from the 1960's to 1980's which I still love e.g. Can, Faust, Kraftwerk, Neu!, Tangerine Dream and many more.