Sharon Osbourne's granddaughter is ''fearless''.

The 61-year-old host is enjoying watching her two-year-old grandchild Pearl - the daughter of Jack Osbourne and his wife Lisa - grow up and show off her new talents.

Speaking to ''She's divine. She's fearless. She's swimming up a storm now. Her favourite thing is dive-bombing into the pool and swimming to the steps.''

The feisty matriarch believes the toddler gets her daring side from her father Jack, 28, because he's always been courageous.

When asked where Pearl has got her bold personality from, Sharon replied: ''Jack. He's always been fearless.''

Meanwhile, Sharon's daughter Kelly, 29, recently admitted she ''couldn't be more proud'' of Jack after he was diagnosed with relapsing-remitting multiple sclerosis, which affects nerves in the brain and spinal cord, in 2012 following many years of symptoms.

She said previously: ''If it's not my mom with cancer or dad in a coma or me in rehab - there's always something going on in my family. But we didn't know what to do or where to turn when Jack was diagnosed with multiple sclerosis ... He's my baby brother. I sit there and my lips quiver if I'm looking at Jack and he's having a flare-up. But he looks at me and says, 'Stop it!' I would do anything to take it away from him, but I can't.

''People have no idea how brave Jack is and what he has to go through every day while still having a smile on his face. I couldn't be more proud of him.''