katy-perry007Katy Perry’s mum is shopping a book in which she complains about her superstar daughter’s life.

Preacher Mary Perry Hudson’s novel tells of her horror at Perry’s racy lyrics and “foul-mouthed fiancé” Russell Brand, who is now her husband.

In the proposal, she says she saw her daughter backstage before an early show.

“Katy stepped out from behind the changing doors in a tiny risqué costume,” she recalled. “No mother wants to see the top of her daughter’s boobs. My first instinct was to order her back behind those doors and demand she put something else on. However, I had no problem letting my eyebrows say what I wouldn’t allow my mouth to utter.”

Hudson also admits to being torn about her need to protect her daughter.

“Oh, dear God, how can I save her from all this?” she writes in the proposal. “The money, the fame, the network, the people surrounding her, how can I compete?”

A spokesman for Perry has not responded to calls for comment.