Dannii Minogue has revealed that Simon Cowell reminds her of the cartoon character sea sponge SpongeBob SquarePants.
The X Factor judge said Simon's hairstyle was sometimes too much to take.
She told ITV1's This Morning: "We've tried (to re-style him)! I wanna change that hairdo - sometimes it gets really flat like the SpongeBob SquarePants character and I can't cope with that!"
But Dannii, 38, who gave birth to son Ethan in July, also joked about her own appearance.
The mother-of-one said of her own wardrobe: "This time last year I had everything in the wardrobe, all packed and ready, and this year I've got like a nappy stuck to one ear... you know? I'm a new mum, I'm just unorganised!"
Speaking about sister Kylie, she said: "She's definitely a natural at being an auntie."