Australian Idol's Anthony Callea's debut single is also commonly known as a duet between who?
Anthony Callea Anthony Cosmo Callea (born 13 December 1982) is an Australian singer-songwriter and stage actor of Italian descent (parents Santina and Cosmo) who rose to prominence after being the runner-up in the 2004 season of "Australian Idol". Callea's debut single "The Prayer" is the fastest-selling single by an Australian artist, held the No.1 spot on the ARIA Singles Chart for five weeks, a record for the debut single of an "Australian Idol" contestant, and was the second-highest selling Australian single of the last decade.
Reigan Derry Reigan Elisse Derry (born 19 September 1988), also known mononymously as Reigan, is an Australian singer and songwriter. Derry rose to fame after placing eleventh on the fourth season of "Australian Idol" in 2006. The following year, she became a member of the Australian pop duo Scarlett Belle, who disbanded in 2011. Three years later, Derry placed fourth on the sixth season of "The X Factor Australia". She subsequently received a recording contract with Sony Music Australia and released her debut extended play, "All of the Pieces", in December 2014.