Stephen Rodrick

Matt Leinart's L.A. duplex looks more like a Chuck E. Cheese safe house than a millionaire jock's crash pad. There's the requisite leather couch and flat-screen television, but the rest of the ground floor is bare except for a pile of Nick Jr. DVDs, a high chair, and a SpongeBob SquarePants director's chair.

Rick Rubin's undulating face hair is just as famous as his body of work. In homage to the yogis he read about as a boy on Long Island, Rubin hasn't shaved since he was 23. It's long been his registered trademark.

Robert Downey Jr. doesn't work out like us regular folks. Adulation bathes him from the moment he arrives at his Los Angeles martial arts studio.

The Smithsonian should box and preserve Tim McGraw's Nashville den for a future exhibit entitled 'Early 21st Century American Man Cave.'