As posted on my vlog.
As stated by Butch Hartman in his 2006 interview with Zcat6 of the DPOFPA, this is the song which inspired the Danny Phantom theme song.
...Anyway, we were out to dinner one night at a Korean mall and I stopped in the music store. I bought a CD collection called "Queen's Greatest Hits". It was a special collection that I don't even think you can get in the States. Anyway, I took the CD's back to the Korean studio the next today and listened to them. (Had to, Korean radio is very hard to get into if you don't know the language). Well, I thought I'd heard every Queen song there was up to that point (I'm a huge fan) but on comes this song called "The Invisible Man". It's a great song and it's all about, yes, a man who is invisible. The lyrics were cool, but the coolest part of the song was the awesome bass line right at the top. I wish I could sing it for you now, but, hey, computers aren't THAT great yet. Long story short, I listened to the song over and over, just really digging on the bass line. And the more I listened the more I thought, "Man, I'd love to use this song as a theme song for a show someday'. Seriously, that's what I thought. Anyway, about 18 months goes by, I pitch "Phantom", it gets going and now we need a theme. I wrote a bunch of lyrics and gave them to Guy Moon…then I played him that awesome bass line. I said" I don't care what music you use, just give me a bass line like this"...
He mentioned the bass line which he fell in love with, but in listening to this song I came across a section that sounds a lot like a part of the original theme (not the one you hear on TV; there is a nonlyrical version that plays in the background of the original credits in the iTunes downloadable episodes). "Never had a real good friend, not a boy or a girl" matches up with "Unleashing all the freaks onto his hometown streets". You can hear the original version on Butch's site, in the Audio section, second menu.