Kelly: Jack showing no signs of MS
Kelly Osbourne has said her brother Jack is doing so well it's as if his multiple sclerosis is "not even there".
Jack, 27, was diagnosed with the disease last year but Kelly told People it wasn't holding him back in any way.
She said: "He's amazing. He's unstoppable. It's like it's not even there. He always reminds me that it's not just him that we're fighting this race for. It's the 2.1 million people living with it as well."
Kelly, 28, who recently announced her engagement to Matthew Mosshart, said she had been doing her bit to raise money and awareness.
She said: "I've done a T-shirt campaign for Race To Erase MS. I've been going to events for years, and especially since my brother was diagnosed... I've so wanted to be a part of the charity."
Jack said last year he was on medication and had adopted a healthier lifestyle to help deal with the disease, which attacks the brain and spinal cord and can affect vision, movement and cognition.