Curious to know how celebrities squeeze fitness into their daily lives? Want to know the secrets of the stars? Bi-weekly our That's Fit fitness expert Fitz sits down with the celebs we want to know more about, and digs out their great and not-so-great methods to staying healthy.

As a three-time Sports Illustrated cover model and world famous supermodel, Cheryl Tiegs knows quite a bit about being beautiful. I suppose this makes her a perfect fit for her role as judge on ABC's new reality show True Beauty, which debuts this Monday, January 5 at 10 PM. Instead of really judging the unsuspecting contestants on their physical beauty, though, Cheryl and her cohorts will be removing folks who act really ugly. That should be fun to watch.

In the gallery below, you'll find more about the show and Cheryl's beauty tricks. You just might learn something new about Cheryl Tiegs -- for example, did you know she once gained a good deal of weight? Click below for more!

Celebrity Fitzness Report: Cheryl Tiegs(click thumbnails to view gallery)