I just heard yesterday that the last surviving member of the '40s pop trio The Andrews Sisters had died, at age 94.

NY Times obituary and blurb about the Andrews Sisters.

From the NY Times article:

"Patty, the youngest, was a soprano and sang lead; Maxene handled the high harmony; and LaVerne, the oldest, took the low notes. They began singing together as children; by the time they were teenagers they made up an accomplished vocal group. Modeling their act on the commercially successful Boswell Sisters, they joined a traveling revue and sang at county fairs and in vaudeville shows. Their big break came in 1937 when they were signed by Decca Records, but their first recording went nowhere.

Their second effort featured the popular standard "Nice Work If You Can Get It," but it was the flip side that turned out to be pure gold. The song was a Yiddish show tune, "Bei Mir Bist Du Schön (Means That You're Grand)," with new English lyrics by Sammy Cahn, and the Andrews Sisters' version, recorded in 1937, became the top-selling record in the country.

"... in [the 1940s] they ... appeared in more than a dozen films ... — sometimes just singing, sometimes also acting. They made their film debut in "Argentine Nights," a 1940 comedy that starred the Ritz Brothers, and the next year appeared in three films with Bud Abbott and Lou Costello: "Buck Privates,"* "In the Navy"and "Hold That Ghost." Their film credits also include "Swingtime Johnny" (1943), "Hollywood Canteen"** (1944) and the Bob Hope-Bing Crosby comedy "Road to Rio" (1947).

...

The Andrews Sisters re-entered the limelight in the early 1970s when Bette Midler released her own recording of "Boogie Woogie Bugle Boy," modeled closely on theirs. It reached the Top 10, and its success led to several new compilations of the Andrews Sisters' own hits.
... :

*which featured their "Boogie Woogie Bugle Boy"
** which featured the song "Don't Fence Me In"