All week long, we're busy checking out how the celebrities stay fit. But there are so many stars, and so many tips, that it can be easy to miss one! If you want to make sure you're up to date on your hot celeb fitness scoop, this is your chance. Click on your secret celebrity fitness crush above to find out what he or she was up to this week!

Shock jock Howard Stern has a gorgeous new wife and while they're still enjoying the honeymoon period (they've only been married a month), a good deal of their physical activity has taken place outside the bedroom -- they've been running.

Beth Ostrosky was training for the New York City Marathon that took place this past weekend and has run every day since her October 3 wedding. That's not a problem for Stern, who is already a runner. Ostrosky told People, "The greatest thing is that he's a runner and he's been running most of the mileage with me."

The training showed -- the former model, 36, finished much faster than her goal of five hours. She crossed the finish at four hours and 15 minutes, as her husband and stepdaughter cheered her on.

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