There were 4 different versions of the Sodajerks theme song.
1. Hard Rock
2. Soft Rock
3. Industrial Dance Music
4. Big Band

The original idea was to edit the four versions together into one
song that would switch styles. The guys wound up liking the
industrial version so much that it became the "official" song
accompanying the opening credits.

The other 3 versions were all used in various episodes, usually over
the end credits.

SO NOW YOU KNOW!