Kelly Clarkson has some harsh words for record company head Clive Davis, whom she says spread "false information about me and my music" and also bullied her.

Clarkson responded to a passage in Davis' just-published autobiography, "The Soundtrack of My Life", in which Davis claims that the singer broke into "hysterical sobbing" when he demanded that her hit "Since U Been Gone" be added onto her album.

"Not true at all", Clarkson posted on WhoSay Tuesday. "His stories and songs are mixed up. I did want more guitars added to the original demo and Clive did not. [Producers Max Martin and Łukasz "Dr. Luke" Gottwald] and I still fought for the bigger sound and we prevailed and I couldn't be more proud of the life of that song. I resent him dampening that song in any way."

The "American Idol" champ further claims that Davis berated her after she played him "Because of You". "I cried because he hated it and told me verbatim that I was a 'sh-tty writer who should be grateful for the gifts that he bestows upon me,'" she wrote. He continued on about how the song didn't rhyme and how I should just shut up and sing. This was devastating coming from a man who I, as a young girl, considered a musical hero and was so honored to work with."

"Because of You" did wind up on the album, becoming one of her biggest hits. Clarkson eventually went on to thank Davis for "for teaching me to know the difference"- we're guessing between supportive and non-supportive collaborators.

Her statement can be seen here.