In December 2003, Osbourne was involved in an accident while riding his four-wheel all-terrain vehicle at his English estate. As a result, he suffered fractures in eight ribs, a vertebra and his left collarbone. While speaking with Britain’s Sunday Mirror, the rock star said he "died" twice and was in a coma for eight days following the accident.

On the Jan. 29 episode of his Sirius XM show, "Ozzy Speaks," with co-host Billy Morrison, Osbourne, 76, admitted he was having problems walking but remained positive.

Ozzy Osbourne felt "overwhelmed" by the response from his friends in the music industry who have all offered to come together to join his huge Black Sabbath reunion gig in the summer.

Ozzy Osbourne gave an update on his physical condition amid his ongoing battle with Parkinson's disease as he prepares for his final performance with Black Sabbath.