Miriam won A.C.E State Student music award as a teenager for singing at the convention in Queensland, Australia.
While staying in Sydney in 1996 she joined her friend who attended Hills Christian Life Centre which is known today as Hillsong Church to go to a Friday night youth service.
Miriam was asked to sing this night as they were looking for an item so she sang a song she had penned years before called 'Fall upon your knees'.
She has toured Australia, New Zealand, Asia and the United States, and recently released her solo album Made Me Glad.
Webster also led worship with Steve Mcpherson and Darlene Zschech at the 25th Hillsong Conference Classic Medlies.