Teri Hatcher is training to lead a team in the Nautica Malibu Triathlon next Sunday, which is one of the things she wanted to cross off her bucket list. The 44-year-old "Desperate Housewives" star will be raising money for the Children's Hospital in Los Angeles and has been hardcore training for the past month. Still, she isn't trying to break any records. "I'm just out to do it and say I did it," she said. "I did surprise myself that I'm in better shape than I thought I was." [People]

Here are some other stars who've trained for serious physical feats.