Sonia was signed to Chrysalis Records after badgering Pete Waterman to listen to her sing outside his recording studio in Liverpool. Waterman called her bluff and asked her to sing live on his weekly radio show. Sonia's debut single, "You'll Never Stop Me Loving You", composed and produced by the songwriting and music production trio Mike Stock, Matt Aitken and Pete Waterman (Stock Aitken Waterman) was released in June 1989. "You'll Never Stop Me Loving You" peaked at number 1 on the UK Singles Chart for two weeks the following month. At 18, Sonia became one of the youngest female British singers to achieve this feat. The single also topped the Irish chart and reached the Top 10 of the US dance chart.