"Over There", written in 1917 by George M. Cohan (I didn't like the historical versions I found on YouTube as much, so I made my own with the Feinstein rendition of the song.)
The original lyrics are as follows:
Johnny, get your gun, get your gun, get your gun.
Take it on the run, on the run, on the run.
Hear them calling you and me,
Every Son of Liberty.
Hurry right away, no delay, go today.
Make your Daddy glad to have had such a lad.
Tell your sweetheart not to pine,
To be proud her boy's in line.
Johnny, get your gun, get your gun, get your gun,
Johnny, show the "Hun" you're a son-of-a-gun.
Hoist the flag and let her fly.
Yankee Doodle do or die.
Pack your little kit, show your grit, do your bit.
Yankee to the ranks from the towns and the tanks.
Make your Mother proud of you
And the old red-white-and-blue
Over there, over there,
Send the word, send the word over there
That the Yanks are coming, the Yanks are coming
The drums rum-tumming everywhere.
So prepare, say a prayer,
Send the word, send the word to beware -
We'll be over, we're coming over,
And we won't come back till it's over, over there.