Tom Chapin, Bethany Yarrow, Guy Davis, Michael Mark, Kim Harris, Pat Humphries and Sandy O during the finale.
Spook Handy, Kristen Graves, Reggie Harris, The Chapin Sisters (Lilly and Abigail) and Joel Raphael.
Kristen Grave, Reggie Harris, Kim Harris, Bethany Yarrow and Peter Yarrow.
