Auld Lang Syne
This is the classic song traditionally sung right after the clocks count down to the New Year. New Year's Eve gigs are plentiful and in high demand, so any good musician should be able to play this song and expect people to sing along.
One Handed version (intermediate, 2A-2B)
Two Handed version w/ chords (advanced, 2B and up)
One Handed version (intermediate, 2A-2B)
Two Handed version w/ chords (advanced, 2B and up)