Glen Campbell (1936-2017) was a Grammy winning, Golden Globe and Academy Award nominated country music recording artist who played with many other stars in the pop and rock fields over the years. Over his career, he dueted with Anne Murray, Tanya Tucker, and Mel Tillis, and scored one of his biggest hits with "Rhinestone Cowboy".
He sang "Keep on Smilin'" with Oscar the Grouch on the 1981 album Sesame Country.