It was the single that changed everything for Stock Aitken Waterman. The debut single for Princess, "Say I'm Your Number One" was not only a shift away from hi-NRG towards soul/pop but it saw Mike Stock and Matt Aitken take a more proactive role in writing the songs they would produce. In an exclusive interview, we talk to Princess and her brother/manager, Donovan Heslop, about her move from backing vocalist to solo star, the origin of the name Princess, recording with SAW and signing to Supreme Records, the worldwide success of "Say I'm Your Number One" and why the relationship with the production trio eventually broke down. And we explore the influences and highlights of one of SAW's greatest tunes.Subscribe for bonus material at chartbeats.com.au/sawTwitter: @ChartBeatsAU, @MrMattDenbyInstagram: @chartbeatsauFacebook: Chart Beats: A Journey Through PopEmail: chartbeats.au@gmail.com