Nine artists compete to create portraits of celebrity sitters including artist Ken Done, chef Maggie Beer and Yellow Wiggle Tsehay Hawkins. Using diverse techniques, they showcase creativity and skill in just four hours.

Heat 3 features an array of unique talent, including the youngest and oldest artists in the competition. Celebrity sitters are Gardening Australia's Costa Georgiadis, comedian Celia Pacquola and actor Talijah Blackman-Corowa.