Ozzy and Sharon Osbourne are not divorcing. The Black Sabbath frontman has refuted reports that their marriage will be ending soon, but has admitted that he has had a drug relapse.

Amid reports that his wife of almost 31 years left their Beverly Hills home because they are separating, Ozzy took to his Facebook page to explain what happened.

"For the last year and a half I have been drinking and taking drugs. I was in a very dark place and was an asshole to the people I love most, my family. However, I am happy to say that I am now 44 days sober," he wrote.

"Just to set the record straight, Sharon and I are not divorcing. I'm just trying to be a better person.

"I would like to apologize to Sharon, my family, my friends and my band mates for my insane behaviour during this period...... and my fans.

"God Bless, Ozzy"

Ozzy and Sharon have both been seen separately without their wedding rings on, giving rise to speculations that they were heading for divorce. The Daily Mail cited sources claiming that their rift was caused by financial strains.

Sharon, meanwhile, was spotted in Cabo, Mexico having a foot massage. TMZ reported that the Osbourne matriarch cooled off at the Esperanza Resort, but the split was still clearly on her mind as she texted and talked on the phone constantly.