So much for playing nice with your boss.
Sharon Osbourne unleashed her ire on her "America's Got Talent" boss Simon Cowell during her co-hosting gig on "The Talk" Tuesday, saying that the comments Cowell made about her in a new biography are proof that the "X Factor" judge has "small-penis syndrome."
"He's wealthy, he's powerful, he's creative, he's got everything … but you can't buy the goods," she continued, pointing to her crotch.
A rep for Cowell did not immediately respond to TheWrap's request for comment.
The reason for Osbourne's anti-Cowell rant: comments he supposedly made in the book "Sweet Revenge: The Intimate Life of Simon Cowell," an upcoming Cowell biography by writer Tom Bower.