The former Black Sabbath frontman unveiled his 12th studio album, "Ordinary Man," earlier this February.
While the long-awaited follow-up to 2010's "Scream" just hit streaming services, Osbourne announced in a Reddit Q&A that he was already recording a new album.
"I am making another album because while I can't tour, I can make music. What I learned from Ordinary Man, it got the juices flowing again. People say they write the best songs when they're unhappy, and I was unhappy last year. I don't have a favorite song from 'Ordinary Man' because I was writing a new song every day!" he explained.
The Prince of Darkness revealed that he was working on the yet-untitled project with producer and frequent Post Malone collaborator Andrew Watt, adding "[i]f it comes out anything like 'Ordinary Man' I'll be well pleased."
The pair recently reconnected with Posty on "It's a Raid," which was released ahead of "Ordinary Man."
In addition to Watt and Malone, Osbourne also collaborated with Elton John, Slash, and Rage Against the Machine's Tom Morello, Gun N' Roses' bassist Duff McKagan and the Red Hot Chili Peppers' drummer Chad Smith for his latest studio album.
Earlier this February, the 71-year-old musician announced that he was cancelling the North American leg of his "No More Tours 2" to seek medical treatment in Switzerland.
"I don't want to start a tour and then cancel shows at the last minute, as it's just not fair to the fans. I'd rather they get a refund now and when I do the North American tour down the road, everyone who bought a ticket for these shows will be the first ones in line to purchase tickets at that time," he said in a statement.
Osbourne has battled with various health issues in the past year, including Parkinson's disease, pneumonia, and injuries caused by a fall at his Los Angeles home.
While he will not be hitting the road anytime soon, the British singer-songwriter confirmed that he will attend Austin's South by Southwest Film Festival for the premiere of the "Biography: The Nine Lives of Ozzy" documentary.
"I'm just about to get ready to go to the SXSW Convention to premiere my new A&E documentary and then heading to Panama. Dunno when I'm coming back! Been going nuts sitting on my a** all the time," he added on Reddit.