The much-loved couple have been married for 31 years and have three children together, but according to UK newspaper The Sun, they've both moved out of the LA home they once shared and have been living apart for three weeks.
The newspaper reports that Sharon is renovating a house in Beverly Hills while staying in a hotel, and Ozzy is renting a place just a few kilometres away.
"They are living at different addresses and are not spending any time together. They row a lot," said a source.
"They aren't acting like husband and wife. It is unusual to not even have dinner together when both of them are five minutes apart."
Recently sighted without their wedding rings, Sharon and Ozzy are yet to publicly acknowledge the split, but Sharon recently tweeted about having a "really tough year".
According to UK site Digital Spy, Sharon is set to head back to her hosting role on The X Factor UK while Ozzy is still probably, well, being Ozzy.
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