all recorded Christian themed songs. Other performing artists such as Catholic nun Sister Janet Mead, Aboriginal crooner Jimmy Little and Australian Idol contestant Guy Sebastian have held Christianity as central to their public persona. Church music also ranges widely across genres, from Melbourne's St Paul's Cathedral Choir who sing choral evensong most weeknights; to the Contemporary music that is a feature of the evangelical Planetshakers and Hillsong congregation. The Ntaria Choir at Hermannsburg, Northern Territory, has a unique musical language which mixes the traditional vocals of the Ntaria Aboriginal women with Lutheran chorales (tunes that were the basis of much of Bach's music). Baba Waiyar, a popular traditional Torres Strait Islander hymn shows the influence of gospel music mixed with traditionally strong Torres Strait Islander vocals and country music. Annually, Australians gather in large numbers for traditional open-air Christmas music Carols by Candlelight concerts in December, such as the Carols by Candlelight of Melbourne, and Sydney's Carols in the Domain. Australian Christmas carols like the Three Drovers or Christmas Day by John Wheeler and William G. James place the Christmas story firmly in an Australian context of warm, dry Christmas winds and red dust. New South Wales Supreme Court Judge George Palmer was commissioned to compose the setting of the Mass for Sydney's World Youth Day 2008 Papal Mass. The Mass, Benedictus Qui Venit, for large choir, soloists and orchestra, was performed in the presence of Pope Benedict XVI and an audience of 350,000 with singing led by soprano Amelia Farrugia and tenor Andrew Goodwin. "Receive the Power" a song written by Guy Sebastian and Gary Pinto was chosen as official anthem for the XXIII World Youth Day (WYD08) held in Sydney in 2008. Denominations Church affiliation The churches with the largest number of members are the Catholic Church in Australia, the Anglican Church of Australia and the Uniting Church in Australia. Pentecostal churches are growing with megachurches, predominantly associated with Australian Christian Churches (the Assemblies of God in Australia), being found in most states (for example, Planetshakers Church, Hillsong Church and Paradise Community Church). Australian Bureau of Statistics As at the , 11,148,814, representing 43.9% of the total population, declared a religious affinity with Christianity. Church attendance While church affiliation as reported in the census identifies the largest denominations, there is no overarching study that shows how active the members are. Some smaller studies include the National Church Life