On a lighter note (then the previous category), another unmistakeable sound of the "war years", with breathtaking (close) vocal harmonies, were the unforgettable and unavoidable Andrews Sisters. Laverne, Maxene and Patty (the blonde lead vocal), were releasing "Bei Mir Bist Du Schoen (Means That You're Grand)" into the air-waves in 1937, when the craze started spreading throughout the U.S.A. and then went on to Europe and conquered the world in less then two years.
According to Wiki, "The Andrews Sisters became the best-selling female vocal group in the history of popular music, setting records that remain unsurpassed today: approximately 75-100 million records sold from a little over 600 recorded tunes."
For your enjoyment, here's a selection of some the most popular hits:
Boogie Woogie Bugle Boy Of Company B
Bei Mir Bist Du Schoen (Means That You're Grand)
Beat Me Daddy Eight To The Bar
Hold Tight! (Want Some Seafood, Mama!)
In The Mood
Rum & Coca-Cola
In 1942, Hollywood stars (with Bette Davis in the lead) joined efforts to entertain the troops, opening and running a club called Hollywood Canteen, where "glamorous stars volunteered to wait on tables, cook in the kitchen and clean up." All servicemen on their way overseas were invited to come in, eat, drink, watch the show, or dance swing with the on-duty patriotic "jitter bug". Here's the Sisters' tribute to the girls "Gettin' corns for my country".
In this "rare recording" Al Jolson and The Andrews Sisters join harmonies in "The Old Piano Roll Blues":
Don't Sit Under The Apple Tree
(I'm Gettin') Corns For My Country