Duncan's daughter Tianie is a keen performer herself and has even starred alongside her famous daddy on shows such as ITV1's Daybreak and Big Star's Little Star.
Earlier today, Big Reunion star Duncan revealed to his Twitter followers that Tianie has turned nine by posting this photograph of himself and his little girl on Instagram.
Proving she's growing up fast, Tianie's hair looks darker and straighter since the last time we saw a picture of her.
Alongside the snap, Duncan commented: "Me and the bday girl!!! 9 today!!! Happy bday Tianie."
What a stunner - just like her dad!
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