Sorry ELO did nothing for me and the Traveling Willies were around for less time than an infomercial.  If your going down rock and roll super group lane... you can't leave out........
http://www.youtube.com/watch?v=UY4KG...eature=related
or.......
http://www.youtube.com/watch?v=mUW1S...x=0&playnext=1
If your going to use the phrase "Supergroup" you have to reply "yes" to the following question from Mr. Gozer the Gozerian from NYC.  See link...
http://www.youtube.com/watch?v=c6HWpqonRcY
If the answer is no.......your not a supergroup your most likely the Archies
http://www.youtube.com/watch?v=mGL4btEIoTo
Notice the difference between the supergroups and the Archies.
Join us next week when Clyde will lecture on the effect of the musical Beulah Bounce.