First recorded (as an instrumental) by Paul Whiteman & His Concert Orchestra (1934).
Hit vocal versions Larry Clinton & His Orchestra with Bea Wain (US #1 1939), Artie Shaw with Helen Forrest (US #17 1939), Billy Ward & His Dominoes (US #18/UK #30 1957), Nino Tempo & April Stevens (US #1/UK #17 1963), Donny & Marie Osmond (US #14/UK #25 1976).
From the wiki: “‘Deep Purple’ was the biggest hit written by pianist Peter DeRose, who broadcast from 1923 to 1939 with May Singhi as ‘The Sweethearts of the Air’ on the NBC radio network. ‘Deep Purple’ was first published in 1933 as a piano composition. The following year, Paul Whiteman had ‘Deep Purple’ scored for his suave orchestra that was ‘making a lady out of jazz’ and the song became so popular in sheet music sales that Mitchell Parish added lyrics in 1938.