Well, thanks to Karen in Chicago, who attended the Kidzapalooza kickoff party in Chicago a few days back, this question is a little more relevant. I noted the Kidzapalooza lineup a few days ago, but Karen in Chicago went to the party and noted an additional performer: G. Love.
Now, the only kids' song I know G. Love has recorded is "Jungle Gym," with Jack Johnson on the Curious George soundtrack. Assuming he's not going to play that song a dozen times straight (how punk would that be?), maybe he's got some new stuff up his sleeve. Heck, if you can tolerate a few references to adult beverages, "Cold Beverage" itself would be easily G-rated.