Ever wonder what the "Batman" cartoon and TV theme - you know, "na-na-na-na-na-na-na-na-na-na-na-na-na-na-na Batman" would sound like if it were actually sung by, wait for it, bats?
Neither did this guy.
But after watching a new video spreading across the interweb, I'm hooked.
So here's the deal, according to this gem's YouTube page:
German guy named Ulrich Seidel, who apparently claims to have the only real "Bat Organ" converts bat ultrasounds - which are not audible to human ears - into notes on the keyboard. Then away he goes.
The video was compiled by Sándor Seuntjens from live-action "Batman" and National Geographic footage and the cartoon from 1992-95.
Here it is. Enjoy!