
Geoffrey William "Geoff" Bullock is an Australian singer-songwriter and pianist. He became a committed Christian in November 1978 and in 1983 helped pioneer the Hills Christian Life Centre, which later became part of Hillsong Church. He was appointed as the church's worship pastor and was also the convenor of their annual conferences from 1987 to 1995.
Richard Connolly is an Australian musician, composer and former broadcaster for the Australian Broadcasting Corporation.
Peter Andrew Furler is an Australian musician, songwriter, producer and record executive, best known as the co-founder and former lead vocalist of the Christian rock band Newsboys.

Joel Timothy Houston is an Australian musician, songwriter, pastor, and leader in the Sydney-based band Hillsong United, a worship band of Hillsong Church.

Dami Im is a Korean-born Australian singer-songwriter, multi-instrumentalist performing artist. Im is known for achieving the highest Eurovision score for Australia.

Reuben Timothy Morgan is an Australian worship pastor at Hillsong Church UK and one of several worship leaders and songwriters in Hillsong Worship group. Prior to this he was a worship pastor at Hillsong Church in Sydney, Australia. He has written songs such as "Eagles Wings", "Hear Our Praises", "I Give You My Heart", "My Redeemer Lives" and "Mighty to Save", which won the Worship Song of the Year at the 40th GMA Dove Awards. In 2005 his first solo worship album, World Through Your Eyes, debuted at No. 3 in the Australian Christian Charts.

Paulini Curuenavuli, known professionally as Paulini, is a Fijian-Australian singer, songwriter and actress. Born in Suva, Fiji, Paulini moved to Sydney, Australia with her family at the age of four. She rose to fame in 2003 as a contestant on the first season of Australian Idol and placed fourth in the competition. Paulini subsequently signed a recording contract with Sony BMG Australia and released her debut studio album One Determined Heart (2004), which debuted at number one on the ARIA Albums Chart and was certified platinum. The album included the platinum single "Angel Eyes", which spent three consecutive weeks at number one on the ARIA Singles Chart. Paulini received two ARIA No. 1 Chart Awards for both the album and single.

Guy Theodore Sebastian is an Australian singer and songwriter who was the winner of the first Australian Idol in 2003, and a judge on Australia's The X Factor in 2010, 2011, 2012, 2015 and 2016. He represented Australia at the 2015 Eurovision Song Contest, finishing in 5th place.

Rebecca Jean Fink, known professionally as Rebecca Jean or Rebecca St. James, is an Australian Christian pop rock singer-songwriter and actress. She began performing in Australia in the late 1980s and released her first full-length studio album in 1991. She was signed to ForeFront Records in 1993, releasing her major label debut the following year.