You're going to need
Quicktime Player if you cannot behold the horror below.
Leonard Nimoy's singing is infamous among Trekkies (not to mention William Shatner's), but who knew there was video evidence? Just to remove whatever semblance of sanity you thought you had left, GR proudly presents our friend Mr. Spock singing "The Ballad of Bilbo Baggins."
Most illuminating.