Maurice Rocco plays this boogie-woogie classic and sings it in this soundie.
Soundies were short films, usually about three minutes in length, meant to be played on a machine called a Mills Panaram. These video jukeboxes could be found in bars, diners, night clubs, and other places where their video-less equivalents might be found. From 1940 through 1946, Mills and other companies produced more than 2000 shorts, many featuring performers who would become more prominent, like Doris Day and Nat King Cole.
This version of the boogie-woogie song is particularly interesting, because you can also think of it as an early rhythm-and-blues number, a Black style of music that would evolve into rock and roll.