The Church of Scientology remains one of the world's most controversial organizations, both for its practices and its emphasis on celebrities. Church founder L. Ron Hubbard allegedly developed a strategy of getting celebrities to join the church as a means of generating income and publicity. Still, not all Scientologists like to discuss their faith, or for the public to know about it. This group of celebs all practiced at one point or another. Some speak openly of their association when asked, while others try to remain secret celebrity Scientologists.