William 'Red' McKenzie (October 14, 1899 – February 7, 1948)[1] was an American jazz vocalist and musician who played a comb as an instrument.

He played the comb-and-paper by placing paper, sometimes strips from the Evening World,[2] over the tines and blowing on it, producing a sound like a kazoo.

[1] In 1923, he founded the Mound City Blue Blowers,[1] with Jack Bland and Dick Slevin.

In 1929, the Blue Blowers recorded the songs "One Hour" and "Hello Lola" with Glenn Miller, Pee Wee Russell, and Coleman Hawkins.

McKenzie sang with the Paul Whiteman orchestra and in the 1930s led the Spirits of Rhythm and the Farley-Riley band.