The song was written and released in 1970 by a group called the Free
Design. This group did jazzy, cheerful pop with some baroque touches.
They were basically the Star Trek of pop groups: they were not a
commercial success at the time, but they developed a very devoted
following at the time, and were re-discovered by later generations. Beck
and Cornelius both consider The Free Design as influences. For more on
The Free Design, see
The 1970 album "Stars/Time/Bubbles/Love" has the original version of
"Bubbles". The Dressy Bessy cover basically takes this song and changes
one verse to connect it to the Powerpuff Girls. The original lyrics can
be found at
http://www.lyricstime.com/the-free-design-bubbles-lyrics.html
The Free Design albums and singles are available through Amazon.
Finally, Rich Finegan found an even earlier song that could have been
used as a Powerpuff theme:
http://www.youtube.com/watch?v=QEzSQJbEqwQ
--
"All things extant in this world,
Gods of Heaven, gods of Earth,
Let everything be as it should be;
Thus shall it be!"
- Magical chant from "Magical Shopping Arcade Abenobashi"
"Drizzle, Drazzle, Drozzle, Drome,
Time for this one to come home!"
- Mr. Wizard from "Tooter Turtle"