Ozzy Osbourne has revealed he is undergoing "intense therapy" for a "sex addiction" that nearly resulted in the disintegration of his marriage to Sharon Osbourne.
The 67-year-old Black Sabbath singer said in a statement that he was "mortified" at the effect of his behaviour on his family.
The announcement came after hair stylist Michelle Pugh told People magazine she had a "very real relationship" with the rocker, lasting four years.
Earlier this year, Ozzy moved out of the family home, with Sharon suggesting in May that their 34-year marriage could come to an end.
After reports of the split, the 63-year-old told US television chat show The Talk that she had "no idea" if she shared a future with her husband.
However, the couple later indicated they were back together.
Ozzy said in a statement: "Over the last six years, I have been dealing with a sex addiction. I'm sorry if Ms Pugh took our sexual relationship out of context.
"I'd also like to apologise to the other women I have been having sexual relationships with."
He added: "Out of bad comes good. Since the press exposed this, I have gone into intense therapy. I am mortified at what my behaviour has done to my family.
"I thank God that my incredible wife is at my side to support me."