On Saturday, February 28th, 2009, Jack Black and Sam Bush joined Charlie Haden and Friends for the Grand Ole Opry at the Ryman Auditorium in Nashville, TN.  Below you can view a video clip of this fun, yet amazing collaboration.

The group played "Old Joe Clark", a traditional folk song which was sung during World War I and later by soldiers in eastern Kentucky.  Although there are about 90 stanzas of various versions of this song, they only ran through a few during this version.