* Check out this cool pic http://fc04.deviantart.net/fs71/i/2013/158/3/c/rat_rage_samurai_pizza_cats_by_robaato-d68606l.png
Since I often see replies regarding who sings the song, it is NOT Fred Schneider of the B-52s. The singer is Pizza Cats writer Michael Airington who did an imitation of comedian Paul Lynde while drunk.
If you like the English dub, why not check out the original Japanese version of the intro. Uploaded by TwinkleBerryZ here watch?v=tvzTU5vF_lM