Jack Osbourne announced in 2012 that he had been diagnosed with multiple sclerosis, and over the weekend his parents Ozzy and Sharon talked about Jack's struggle at a Rock Against MS Foundation event.

The couple spoke with Eric Blair (watch above) on the red carpet at the event, billed as an evening of art with Billy Morrison (Billy Idol's band) and artist Joey Feldman. Ozzy discussed how Jack is handling everyday life.

"We were more afraid than anybody. He just gets on with it," Ozzy says. "He just accepts it. He didn't go, 'Oh my God! This is the end.' It must have affected him, but he seems to be handling it really, really well. Sharon and I were freaked out."

Sharon talked about how they have dealt with Jack's diagnosis: "I don't think you ever come to terms with it, but the actions that we did was to educate ourselves about it, 'cause we knew very little about it. And people still know very little about it. So it's about keeping yourselves educated and just keep plugging towards a diagnosis, first of all, of how people get it. 'Cause nobody knows how you get it. And the other thing is a cure."

She added: "I mean, listen, 20 years ago, there was no medication. Now there's around nine to ten medications for MS. Twenty years ago, there was none. So let's hope in 20 years, again, there'll be a cure and people will find out how and why you get it."  (Transcription via Blabbermouth.)

Ozzy's 'Memoirs of a Madman' was recently released. The compilation of his greatest solo hits and more is available on CD, DVD, vinyl and picture disc.

You Think You Know Ozzy Osbourne?