This is one of the easiest songs to get any group to sing; all they have to do is echo each line the song leader sings. Well suited to campfires.
This song's roots are in barbershop quartet tradition, where part of the repertoire includes a song known as "Tee Idle Dum Dum." Somewhere along the line the lead melody and the backing line evolved into the two parts I learned at camp - and to be honest, I think it's much improved.
The MIDI voices used for this are obviously not pronouncing the lyrics, but the melodies and words should be clear even if you've never heard this song before:
No song has been more popular across the years for every kind of kid at summer camp than "Titanic." It's a a fun, lively song about a tragedy, so maybe that combination is a winner. In any event, I arranged this for a virtual marching band to emphasize the fun and lively aspect.