 Since her invitation in 1999, Brielle has served as an Australia Day Ambassador and was the first performer to sing the Australian National Anthem at the Sydney Olympic Stadium.She has performed before the likes of the NSW Premier, the Sydney Lord Mayor, Australian Prime Minister John Howard and US President Bill Clinton.Many of Brielle's performances have assisted a variety of charities and community functions including the "Starlight Foundation", "The Variety Club Children's Christmas Party", "McHappy Day" for Ronald McDonald House, "Wesley Mission", "National Family Day" and "Earth Hour".