Well, we specialized in actual Folk songs (most of my Jr High and High School bus trips occurred during the 60s Folk Scare) like If I Had a Hammer, Michael Row the Boat Ashore, Puff the Magic Dragon and California Dreamin'. We got to be pretty good, actually. Some of the best harmony singing I've ever done was with that bunch of pimply 15 year olds. Our bus drivers actually encouraged us to sing.