We have an annual party with a casual sing-along. I am working on a songbook because many of our friends like to sing but can't remember the lyrics. I have some of my favorites but I'm looking for song suggestions. These are regular folks, singles, parents and kids, mostly not musicians. I grew up singing while my dad played guitar. I play basic guitar chords. I wish I had my dad's play list - Dad's not around any more, so I have to go by memory and what I can find lyrics to.

What are your favorite sing-along songs? What kinds of songs can really get a group going? We already have some classic folk (e.g., This Land is Your Land, 500 Miles, Tavern in the Town, Working on the RR, If I Had a Hammer, Jamaica Farewell) and we also enjoy early Beatles, John Denver, James Taylor (not always easy to play or sing along with, though).