With all the buzz about Scientology and its role in TomKat's quickie divorce, it should be no surprise the blogosphere dredged up a widely reported 2007 interview with Jerry Seinfeld recently. Not only did the funny-man admit to taking a few Sci courses, but he said the communication studies actually helped him be funnier.

Other very big names had their 15 minutes "in." They just don't advertise it… and for good reason, given that the details emerging about Scientology seem to get weirder and more terrifying all the time.

Katharine McPhee

The Smash star who first became a household name on American Idol told Salon.com in 2007: "I took a couple of courses. It was really all about a guy."

"You know, guys and girls can do that to our lives and make us think we're into something that we're not," she continued.

It's been widely reported on Scientology insider sites that McPhee completed an introductory detox service called the "purification rundown." The practice has been criticized for its potentially deadly combination of large doses of Niacin and five-hour stints in a sauna.