Fitness Experts for Crystal

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  • Angela Bassett
  • Tina Turner
  • Serena Williams
  • Usain Bolt
  • Shelly-Ann Fraser
  • Billy Blanks
  • Jeannette Jenkins
  • Michelle Obama
  • LL Cool J
  • Sean T
  • A.J. Johnson
  • Rosa Acosta

Serena Williams

Serena Williams is possibly the best female athlete of all time. She combines speed and strength with grace and agility. Whatever she is doing to work out is sure working.  (Photo: Scott Barbour/Getty Images)

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