My admiration for Frank Gorshin is well documented in this blog. He's a great actor, and he made the Riddler a credible Bat-villain in the 60s series that no one has been able to top. Just can't be done, it seems. Sheer genius.
I had heard this song a while ago, and it's one of my favorite of the Bat-tie ins from that era. Never occurred to me to look for a video of it, and yet, here's a live performance of it. I'm even more amazed at Gorshin's talent, not only can he sing and act, he can also dance. And he goes right into character. Astounding.