photo: william p. gottlieb · public domain ↗On a night in 1931, broadcasting live from Harlem's Cotton Club, Cab Calloway forgot the words to his new theme song. "I couldn't leave a blank there," he wrote in his 1976 autobiography, Of Minnie the Moocher and Me, "so I started to scat-sing the first thing that came into my mind." The ad lib became "Minnie the Moocher," the first million-selling record by a Black artist and the source of his "Hi-de-ho" nickname. Calloway had grown up middle-class in segregated Baltimore — "we had status in the Negro community, but that didn't mean we had money," he recalled — and left law school for the Chicago revue circuit his older sister steered him into. He spent six more decades onstage, on film, and eventually as Sportin' Life in Porgy and Bess, never losing the audience-baiting showmanship built in that one broadcast.
The popular version has Louis Armstrong personally teaching Calloway to scat at Chicago's Sunset Cafe in the late 1920s. Calloway's biographer Alyn Shipton is more careful: the two "did overlap for a few weeks" at the club, he said, though "neither of whom really coincided with Cab for very long." What Calloway took wasn't a lesson but a slow absorption — on his 1930 "St. Louis Blues," Shipton writes, Calloway was "consolidating Armstrong's scatting, timing and phrasing" into an idiom of his own, one that also reached for cantors and street slang Armstrong never touched.
listen forArmstrong's 1926 "Heebie Jeebies" is the record most credited with popularizing wordless, syllable-scat singing — a loose, behind-the-beat looseness that treats the voice as another horn in the ensemble. Cue up Calloway's 1930 "St. Louis Blues" and listen for that same rhythmic looseness reappearing inside his patter, stretched into the layered, character-voiced allusions — cantorial runs, street slang, mock conversation — that made Calloway's scat feel like storytelling rather than mimicry.
His biographer Alyn Shipton found the proof in the discography, not in anyone's memory: Blanche Calloway's "Just a Crazy Song," cut for Victor on March 27, 1931, was recorded — as he put it — before she "could have possibly heard" Cab's "Minnie the Moocher," waxed three weeks earlier, back when pressing and shipping a record took longer than that gap. "She was doing an act — which included 'Hi-De-Hoing' and shout-backing and many of the things that we hear in Cab — way before he was," Shipton said. Cab absorbed the flamboyance; it did not run the other way.
listen forBlanche's "Just a Crazy Song" carries the parenthetical subtitle "(Hi-Hi-Hi)" for a reason — listen for her shouted hook and the band answering the call, the same shout-back structure Cab would build a career on. Set it against "Minnie the Moocher" and the "hi-de-ho" chorus he made famous is the identical trick at bandleader scale: a nonsense phrase tossed to the room, and the room throwing it back.