How rad was Leonard Nimoy? Rad enough that he signed all of his tweets with "LLAP" (Live long and prosper). Fans of Nimoy's stalwart, lovably logical "Star Trek" character got a shout-out every time he sat down to tweet. I'd say that's pretty fantastic.

In fact, it's clear from interviews and special appearances that Nimoy, who died at age 83, was an adroit, cool, and sometimes hilarious guy. We've collected a number of his funnier appearances, clips, and -- oh, yes -- novelty songs to celebrate his life. Join us on this whimsical trip into Spock's impressive life.