In the late '60s composer and violinist Helmut Zacharias recorded a clutch of pop/rock albums, his version of Donovan's "Hurdy Gurdy Man" was pulled as a single for the American market. Hmmm, I'm not sure I'm convinced by its greatness, but maybe by it's weirdness.
His version of the Rolling Stones' "Satisfaction" and Avant-Garde's "Naturally Stoned" are both alright, too—they were on his Light My Fire album.
This style of the easy listening album must have sold well in Europe and the US, where they were often issued on budget labels, 'cause I always find them littering the dollar bins. Some are great, some only have a track or two worth hearing, and other are just the worst MOR crap you'd never, ever wanna hear.