When G.I. Johnny Comes Marching Home

This encore from 2011 features a bouncing ball screen song that encouraged audience participation at theaters through the bouncing ball over the lyrics.  The Matinee At The Bijou screen song post included this example from 1945 called, When G.I. Johnny Comes Home.  After a lot of clever gags about G.I.s returning from World War II, the sing along starts out as the standard version of "When Johnny Comes Marching Home," but it gets a bit hip and swinging toward the end.