Irish rocker Bono and film star Brad Pitt were courted by Scientology's top brass in the hope they'd join the controversial church, an author has claimed.

According to the Daily Mail, in her tell all new book "Beyond Belief: My Secret Life Inside Scientology and My Harrowing Escape," Jenna Miscavige Hill, 29, claims that Irish rocker Bono was once audited by the church.

'There’s a celebrity strategy and they’re targeted for their influence, not their money,' Hill claimed, 'They know people are obsessed with celebrities so will get more interested in Scientology.'

Miscavige Hill, the niece of the Church of Scientology leader David Miscavige, was raised as a Scientologist but left the religion in 2005 and has since become one of its most outspoken critics. Now she says that courting celebrities is an aim of the church.

'I think that celebrities are more inclined to be egocentric and Scientology caters for that – you’re your own God. They’re probably being told that all the time.

'That’s why someone like Bono would fit the bill perfectly as so many people know him.

'I heard he was receiving Scientology auditing and was at one of the Celebrity Centre Galas. Why would he need auditing? Scientology markets itself to everyone, it can deal with everything from marital problems to public speaking. He’s a human, so he still needs those things.'

Hill also claims screen star Brad Pitt was courted by the church in the 90s, going through its drug detoxification program while dating actress and well-known Scientology member Juliette Lewis.

‘I know he was receiving Scientology auditing and was at one of the Celebrity Centre Galas,’ Hill said.

As the daughter of David Miscavige's brother Ron, Hill grew up in the church and has written an explosive memoir on time on the inside.

Hill made her escape from the church after 21 years, and Bono’s alleged courting by the organization is an eye popping revelation.

But high profile celebrity church members can cause the organization as much trouble as it does opportunity. Last month actress Leah Remini made international headlines by fleeing the church. The actress then shone a dramatic spotlight on the church by filing a missing persons report this year on Miscavige’s wife Shelly, who hasn’t been seen publicly in years.

Meanwhile Remini has reportedly been offered millions of dollars for a tell-all book on her many years with the church.

Bono and Brad Pitt at a ONE event in