SYDNEY, AUSTRALIA - AUGUST 27: Delta Goodrem during The Voice top four live pop up show at Museum of Sydney on August 27, 2015 in Sydney, Australia. (Photo by Mark Sullivan/WireImage)
SYDNEY, AUSTRALIA - AUGUST 27: Delta Goodrem during The Voice top four live pop up show at Museum of Sydney on August 27, 2015 in Sydney, Australia. (Photo by Mark Sullivan/WireImage)