The guy is killing me... it would appear that Mr. Hanson goes out to well known artists and gets them to do one-off themes for his shows. Not securing the rights to previously written songs that can get chopped down to 30 seconds for the intro, but original 30- or 40-second bits.

He started (in my scope) with Bones, tapping The Crystal Method to do it.

Then for The Finder, he pulled John Fogerty, who not only did the opening theme Swamp Water, but also appeared in the first episode.

Needless to say, I could listen to longer versions of either of those themes all day long. People have tried... there's a 2 minute spliced-together version of Swamp Water, and DJ Corporate did a remix of the Bones theme... but either of those are not quite the same as the original piece being written as a longer song.

And you know, that's okay. The two themes are complete units in and of themselves, perfect just the way they are.