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CSI: Crime Scene Investigation regular Jorja Fox is to leave the hit drama after seven years. The 39-year-old actress first introduced the character of forensics expert Sara Sidle in 2000.

Britney Spears' husband Kevin Federline is making his acting debut as a thug on TV show CSI: Crime Scene Investigation. The 28-year-old dancer, whose first album "Playing With Fire" is set to be released in October, began shooting the role last week. It is due to be shown on TV later this year.