Celebrity Trainers to the Stars: Who They Are and Who They Train

Want to die hard like Bruce Willis? Punch hard like Sly? Work hard like Heidi Klum? Rock hard like Tina Turner? Or maybe "unleash hell" like Russell Crowe? Yes, you can do it all with a celebrity personal trainer. Build abs like a cattle grid, biceps like The Terminator and a butt like an Olympic sprinter. And that's just in the first week!

Naturally, I can't recommend any of these trainers because that's a personal preference thing. On the other hand, it would be a mistake to necessarily judge their capabilities and knowledge based on who they train. Wouldn't it?

Um. . . should I go for Madonna's trainer or Oprah's. . . or maybe Will Smith's or even Bruce Willis'? How about Ozzy Osbourne's or Rosie O'Donnell's?

Decide for yourself. This list is more apprehensive than comprehensive. . . but hey, I'm sure you can find a soul mate, right?

• Gunnar Peterson -- Bruce Willis, Matthew McConaughey, Sylvester Stallone
• Ashley Borden -- Christina Aguilera, Lauren Graham, Tori Spelling
• Joe Dowdell -- Anne Hathaway, Claire Danes
• Bob Greene -- Oprah
• Harley Pasternak -- Alicia Keys, Eva Mendes, Halle Berry, Orlando Bloom
• Michael George -- Julianne Moore, Meg Ryan, Reese Witherspoon
• Mark Blanchard -- Jennifer Lopez, Jennifer Aniston
• Mark Anthony -- Jordan, Billie Piper, Amanda Wakeley
• Gregory Joujon-Roche -- Rachel Weisz, Demi Moore
• Karen Voight -- Tina Turner, Elle MacPherson, Paula Abdul
• John Spencer Ellis -- everyone, it seems.