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Mariska Hargitay turns 49 on January 23, 2013. The actress is best known for her role as a New York City sex crimes detective, Olivia Benson, on the NBC television drama 'Law and Order: SVU.'
(Pictured: Mariska Hargitay appears in a scene from a Jan. 30, 2013 episode of 'Law and Order: SVU.')
(Michael Parmelee / NBC)