You can add them to the band list if you add a citation next to the band name demonstrating that they are a known band - one of the ones from the article will do.  Or, you can wait until you get the article approved and then just add them with a link to the article. 

 ::About the article:  I filled out a few of the references for you.  I think you have enough to get the article approved for notability.  You may have a little trouble with the reviewers about some promotional comments - maybe leave out the first and third  sentences about gaining attention; they don't really add any info, since the following sentences make that obvious anyway.  The Prairie Home Companion remarks need a reference - but you should be able to use the broadcast itself as a reference for Garrison's comments if you can find out the broadcast date and station.  The OFAM reference appears to be a dead link.  You've got some good information there; maybe try to make it a little more neutral and formal. You can submit it any time now; remember that if it is declined you can always continue to improve it and submit it again. Good luck! —