The 24-year-old, who performed during the second semi-final of the contest last night, met the royal and two of her children โ Prince Christian and Princess Isabella โ just before going on stage.
โMeeting Princess Mary was absolutely divine,โ the singer told SBS.
โSheโs such a beautiful woman and she was very gracious meeting us and having us meet her children as well.โ
Princess Mary looked divine in a red coat as she chatted to the pop singer from Darwin and posed for photographers.
Mauboy performed the dance song Sea Of Flags in a gorgeous gold Toni Maticevski gown.

Jessica Mauboy on stage at Eurovision.
Following her debut on the worldโs most watched music contest, the singer tweeted: โWow wow wow I canโt believe i just sung on #EurovisionSongContest2014โ.