Carrie Underwood recently displayed the best kind of fitness -- fitness of the body as well as the spirit. She took part in the 8th Annual City of Hope Celebrity Softball Challenge, showing off her batting skills while raising money for City of Hope, "an innovative biomedical, research, treatment, and education institute dedicated to prevention and cure of cancer and other life-threatening illness." Judging by the pictures, it looks like Carrie might really have some skills!

Janet Jackson is once again relying on a hardcore workout regiment to get into superstar shape before her comeback tour (scheduled to begin September 7). Six days out of the week, she spends an hour working out in the morning, loosens up for a bit, then dances ... for eight hours!

I remember reading about her fitness routine the last time she got her body into completely amazing shape -- it was really tough, but incorporated all kinds of fun things that she loved to do, like dancing and playing basketball. What a smart way to approach fitness!

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