Who most commonly sang the fastest-selling single by an Australian artist as a duet?
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.
Marlisa Punzalan Marlisa Ann Punzalan (born 1 October 1999), also known mononymously as Marlisa, is an Australian singer who won the sixth season of "The X Factor Australia" in 2014. She became the youngest contestant to win the show at age 15. Punzalan subsequently received a recording contract with Sony Music Australia and released her debut single "Stand by You", which debuted at number two on the ARIA Singles Chart and was certified platinum by the Australian Recording Industry Association. This was followed by the release of her self-titled debut album "Marlisa", which debuted at number six the ARIA Albums Chart and was certified gold. "Stand by You" was nominated for the ARIA Award for Song of the Year in 2015.