Settling in Perth on her move from England, she was noticed by producer Terry Britten when singing with a band. She was soon signed to one of Australia's biggest labels - Mushroom Records.

Her first three singles were all big hits. The ballad Falling In Love With Only You, hit number 20 in 1979. 

She moved to a more disco style for her following two releases - her 1979 Top 3 hit Goosebumps (with sales of 60,000, was for a time Mushroom Record's highest selling single) and He's My Number One hit number 4 in 1980. 

To top it off, Allen was also the voice and star of the commercials for the soft drink Tarino - a Fanta like orange drink. If the jingle 'Come Tarino with Me' would have been released as a single it in all likelihood would have topped the charts.

Subsequent singles followed, but could never match her earlier success. Illness prevented Allen from promoting her career and she soon retired. 

Today, she still lives in Western Australia and has resumed her singing career with country music bands.