Kerrie Biddell (8 February 1947 – 5 September 2014) was a respected Australian jazz and session singer, as well as a pianist and vocal teacher. This is a song from her debut solo self-titled LP, released on the Bootleg label in 1973. The video is most likely from the very first Paul Hogan show telecast on Channel 9, November 4 of the same year.
It's slightly out of sync but still a good indication of her style.
More details:
https://en.wikipedia.org/wiki/Kerrie_Biddell
https://www.discogs.com/master/204473-Kerrie-Biddell-Kerrie-Biddell
https://en.wikipedia.org/wiki/Oh_Me_Oh_My_(I%27m_a_Fool_for_You_Baby)