"Jammin'" is a 1937 hit song by the

Andrews Sisters The Andrews Sisters were an American close harmony singing group of the swing and boogie-woogie eras. The group consisted of three sisters: contralto LaVerne Sophia Andrews (1911–1967), soprano Maxene Anglyn Andrews (1916–1995), and mezz ...

(Brunswick 7863). The song established the Andrews Sisters' popularity with their first record. The song was recorded in New York with

Leon Belasco Leon Belasco (born Leonid Simeonovich Berladsky; 11 October 1902 – 1 June 1988) was a Russian-American actor and musician who had a career in film and television that spanned from the 1920s to the 1980s, appearing in more than 100 films. ...

and his orchestra on March 18, 1937, in the same session that also recorded their other Brunswick Records release, "Wake Up and Live" (Brunswick 7872).Harry Nimm
The Andrews Sisters: A Biography and Career Record
/ref> By October 1937 the sisters had signed with

Decca Records Decca Records is a British record label established in 1929 by Edward Lewis (Decca), Edward Lewis after his acquisition of a gramophone manufacturer, The Decca Gramophone Company. It set up an American subsidiary under the Decca name, which bec ...

References

1937 songs 1937 singles The Andrews Sisters songs Brunswick Records singles {{1930s-song-stub