Marion Ryan, born in 1931 in Yorkshire, England, was a “popular singer with a vivacious style, was successful in the UK on records, radio, and television in the 50s and early 60s (AllMusic) … (she) first appeared on the UK music scene in 1953 and became a favourite on UK television … In the late 50s, Ryan covered several big hits, including Perry Como’s ‘Hot Diggity (Dog Ziggity Boom).'”
From The Independent: “In 1967 (Ryan) retired after a second marriage (to) the millionaire impresario Harold Davison, who handled Frank Sinatra. … Ryan’s personality may be gauged by her entry in the 1962 Radio Luxembourg Book of Record Stars. ‘Pet likes: lounging casually at home. Pet hates: rude, loud, ill-mannered people. Favourite food: Chinese. Hobbies: reading.'”
The carnival-like instrumentation of “Hot Diggity” (1956) somehow provides no competition for Ryan’s confident vocals. At 1:29, a half-step modulation kicks in.