These days, celebrities seem to do little more than shop, nibble on their salads at the newest restaurants, and go wild at the new Hollywood hot spots. 

Occasionally they film a movie or two, and, of course, have a baby.

But, surprisingly, a few select celebs have decided to push their bodies, and minds, to the limit by participating in a marathon of their choice—26 miles, 285 yards to be exact. Most recently, Jennifer Lopez has announced she is planning to shed the rest of her baby weight while she trains for an upcoming marathon in the fall.

Feast your eyes on this Top 10 Countdown of Famous Running Fanatics! The joggers are ordered from most shocking to most expected. 

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Many may know Ali Landry simply as "the Dorito's girl," but she has come a long way since that commercial debuted in 1998. Now she is a happily married mother of two who is seeking to do God's will in her life, both personally and professionally.