Australian jazz, pop and session singer., as well as a pianist and vocal teacher.
Born 8 February 1947.
Died 5 September 2014.

Born in Kings Cross, New South Wales, the only child of Irish-Catholic parents Kathleen, a jazz pianist and Dan, a solicitors clerk who also played piano. Biddell was sent to St Vincent's Convent in Potts Point at the age of six, soon after her father left her mother. In 1962, Biddell suffered a collapsed lung and rheumatoid arthritis, the latter of which affected her piano playing. She decided to become a singer, and, in 1967, sang for Dusty Springfield on backing vocals. Impressed, Springfield suggested she become a lead singer..

Biddell joined the local band The Echoes, and in 1968, The Affair. Affair guitarist Jim Kelly called Biddell a world-class vocalist. With her voice, the group could do various musical styles, such as Aretha Franklin-type soul, Sly Stone funk, and Jimmy Webb compositions In 1969, the national competition Hoadley's Battle of the Sounds added a vocal-group category to its main pop/rock category. Kelly stated that The Affair was not a vocal group, but Biddell rehearsed us till we were. The group won the category, with its prize being a trip to London, where the group relocated in mid-1970, only to disband months later. Before disbanding, they recorded Sly and the Family Stone's Sing a Simple Song, which would become one of Biddell's signature songs.

Biddell returned to Australia in 1970, where she toured with the Daly-Wilson Big Band, which performed swing music, in between her stint with Wilson, she also did tours with Dudley Moore, Cilla Black and Buddy Rich. In 1972, she married David Glyde, a former alto saxophonist for Sounds Incorporated, who opened for The Beatles on tour. Glyde had contacts in Canada, and he and Biddell moved there. Her career as a session singer began soon after. She and her husband toured in the United States, including clubs in Las Vegas. She was offered a three-year six-figure USD contract with the MGM Grand Hotel and Casino, and, despite being desperate to be a star, she discovered she did not care for the business side of Vegas. I started to see that the amount they wanted to take away from me was too much, she stated, and moved back to Australia in 1972, enrolling in the Sydney Conservatorium of Music.

She and Glyde divorced in 1977. She sang on hundreds of jingles, television shows and film scores, including the theme from series Sons and Daughters,

Biddell formed the group Compared to What which featured young Australian jazz talent, including pianist Mark Isaacs, who was to write an obituary for her in 2014.

In 1983, she joined the faculty of the Jazz Diploma course at the Conservatorium, where she periodically taught into her later years. In 1992, she wrote a one-woman show, Legends, which later included June Bronhill, Lorrae Desmond, Toni Lamond, and Jeanne Little.[1] In 2001, due to poor health, she retired from performing, but continued her teaching career.

On 4 September 2014, Biddell died from a stroke. She was 67.