Fitness Experts for Crystal

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

Billy Blanks

Billy Blanks is a former martial arts action star turned fitness trainer. He invented the Tae Bo exercise program in Boston by combining elements of boxing and martial arts. (Photo: Koichi Kamoshida/Getty Images)

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