Here's the original opening of Atomu (Astroboy) from the early 60's. This, I am proud to say, is the only song that I can sing at Karaoke in Japanese.
Here is "Domo Arigato, Mr. Roboto" by Styx done with Astroboy animation.
And I'm not done with you yet...Did you know that Atomu has met Anne Frank? Well, now you do.