Cheryl says her son Bear is the centre of her world.
The 36-year-old singer raises Bear, two, with former partner Liam Payne, and praised her son as her biggest motivation as she appeared on Children In Need on Friday.
She said: "My son means the world to me, he's the reason I get up in the morning.
"I can't imagine ever having to be without him."
The ex Girls Aloud star made the charity appearance to introduce an emotional clip about a family who have been supported by a bereavement centre in Newcastle.
Bear's dad Liam, meanwhile, recently admitted he regards his ex as 'the most important person in his life'.
The former couple split last year after a two-and-a-half-year relationship.
Liam, 26, also said in his book Straight Talking that becoming a father in his twenties 'messed him up'.
"Becoming a dad at such a young age, it's such a difficult thing," he said.
"And I think I built fatherhood up so much in my head that it kind of messed me up to start with. I started in a bad place with it.
He went on to say: "[Cheryl] is one of the most, if not the most, important people in my life.
"I'm lucky I have someone who understands what I'm going through."
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