Many popular big band songs are featured in Songbird, but others just didn’t quite make the list. During World War II, songwriters used their skills to write propaganda pieces for the war effort. I think you will find these both hilarious and terrible! “You’re a Sap, Mr. Jap” Performed by the Murphy Sisters (A song written to humiliate the Japanese Army) You're a sap, Mr. Jap, you make a Yankee cranky You're a sap, Mr. Jap, Uncle Sammy's gonna spanky Wait and see before we'