Mary was a vision in a gorgeous white layered gown from Ole Yde's Spring/Summer 2010 collection. It featured a black sash on one shoulder, and Mary continued the monochrome theme by accessorising with a black clutch and matching earrings.
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The brunette princess and her husband Crown Prince Frederick were the hosts of the Crown Prince Couple's Awards – which was held for the first time outside Denmark.
The ceremony was established after the couple's 2004 wedding and rewards Danish talent with money prizes and recognition. This year, winners included the creative team behind The Killing, and Night Owls - a volunteer organisation dedicated to helping young and vulnerable people.
Mary took to the stage to give violinist Rune Tonsgaard Sorensen with a rising star award, surprising her self and drawing laughs from the crowd when she accidentally switched between English and Danish mid sentence while presenting the gong.
Frederik and Mary spent five days in the city where they fell in love attending events to celebrate the 40th anniversary of the Sydney Opera House and the Danish architect who designed the landmark, Jorn Utzen.
The Danish crown prince met Tasmanian marketing consultant Mary Donaldson back in 2000 when he attended the Sydney Olympic Games and the royal couple have since visited Australia several times.