Kate, 31, was photographed in a bright emerald green coat-dress as she arrived at the National Arboretum in Canberra and it was clear all eyes were on her.
The Duchess of Cambridge's outfit was by designer Catherine Walker and she teamed it with her favourite pair of patent nude heels from LK Bennett.
Kate, who is a fan of coat-dresses, also wore the eye-catching number to Australia's National Portrait Gallery, where she met one very excited fan.
Wilhelmina Dreghorn, three, is said to be "obsessed" with princesses and she presented Kate with a posy of flowers. Afterwards, her mother described the moment as "a dream come true".
Although Kate and William were seen smiling as they chatted to Australian residents and dignitaries, the events yesterday were tinged by sadness.
During their time in Canberra, the couple were told the sad news that Mark Shand, brother of William's stepmother Camilla the Duchess of Cornwall, had passed away after an accident in New York.
Kate and William, along with their baby son George, are currently on a two-week tour of Australia.
They began their trip in Sydney, after jetting in from a week-long stay in New Zealand, and have also travelled north to Uluru.
Yesterday, Kate and William tried their hand at DJing while visiting a youth project in Adelaide.
Are you a fan of the coat-dress? Tell us below, as the best comment from across the website each week wins £50.