Katy Perry's mother, Mary Perry Hudson, is speaking out against her daughter's racy style in a book proposal, reports Page Six.

Hudson, an evangelist, has been shopping a book proposal about how her daughter's sexy ensembles and "foul-mouth fiance" (now husband) Russell Brand have affected her Christian ministry.

"I recognized the psalmist gift in her performance. Yet she sang out, 'I kissed a girl, and I liked it,' while thousands joined her. One part of my heart soared . . . the other part broke for the thousands of hungry souls being fed something that didn't nourish their spirit, but fed their flesh," Hudson wrote.