Updated: Aug. 25, 2021 at 7:15 AM

Rachel Bilson turns 40: a look back (17 images)

Actress Rachel Bilson, known for her roles in "The O.C." and "Hart of Dixie," turns 40 on August 25, 2021. Here's a look back at her life through the years.

Rachel Bilson, known for playing Summer in "The O.C.," arrives at the premiere of "I Heart Huckabees" in Los Angeles on September 22, 2004. Photo by Francis Specker/UPI

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Bilson arrives at the Teen Choice Awards at the Gibson Amphitheater in Universal City, Calif., on August 14, 2005. Photo by Michael Tweed/UPI

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Bilson arrives for the Race to Erase MS fashion show and concert in Los Angeles on May 12, 2006. Photo by Jim Ruymen/UPI

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Bilson arrives for Chrysalis' Butterfly Ball in Los Angeles on June 10, 2006, where actress Salma Hayek was honored for her support in helping economically disadvantaged individuals become self-sufficient through employment opportunities. Photo by Jim Ruymen/UPI

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