Everyone knows that Captain Kirk (or at least William Shatner) can croon, but Spock too? Indeed: actor Leonard Nimoy recorded a full-length album as the pointy-eared Star Trek Vulcan, 1967’s Leonard Nimoy Presents Mr. Spock’s Music from Outer Space. The album — and its follow-up, Two Sides of Leonard Nimoy — explore the feelings of Nimoy’s alien character through song. The releases — all done in character — were enough of a success to inspire Nimoy to record three albums of his own. The last, 1970’s The New World of Leonard Nimoy, included covers of “Proud Mary” and “I Walk the Line,” plus the unforgettable “Ballad of Bilbo Baggins.”