She's a famed singer, a Eurovision Queen and most likely the actual Queen on The Masked Singer Australia.
Yep, tonight as we countdown to the grand finale of the popular reality TV singing show, the season's worst kept secret is about to be officially announced.
With her ethereal and haunting voice on full display, it's long been suspected The Queen is The Last Day On Earth hitmaker.
But when she's not starring on singing contests both locally and abroad, the singer's proudest achievement is being mum to her four-year-old son Ernie Edward Miller, who she shares with husband and fellow musician Keir Nuttall.
And while Kate's celebrated voice is adored by millions, Ernie isn't a fan.
"Ernie is still not a fan of my voice. He prefers if I don't sing. At all. He said to me, 'I love you, but I don't like you and I especially don't like your face,'" the 38-year-old explained to the Daily Telegraph.
Last year, Kate's incredibly moving song Zero Gravity - penned about her struggles with post-natal depression in the early days of motherhood - saw her come ninth at the Eurovision contest.
"Zero Gravity is about emerging from depression into balance again. It tries to capture the sensation of colour returning to your life, of feeling strong, joyful and relieved," Kate explained of the inspiration behind the hit track.
"Any parent knows the relentlessness of having an infant - the sleep deprivation, the mental fog, the physical weakness, the sensation of somebody trying to suck your nipples off 28 times a day. After Ernie turned two, I woke up one day and felt somehow... better. The fog had lifted. Stronger. I had the energy to see friends. It was a feeling of transcendence. I felt like I had been given a golden ticket. It was like how getting back to normal after explosive food poisoning feels like a treat," she mused.
A powerful message that will no doubt strike a chord with parents battling it out in the newborn trenches.
Keep scrolling as we take a look at Kate Miller-Heidke's beautiful family album.
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