Photo! A Brunette Reese Witherspoon Holds Baby Tennessee

Reese Witherspoon

Insert 'Legally Blonde' joke here.

The 37-year-old Legally Blonde actress debuted a new hair color this week as she was photographed with darker locks, according to Us Weekly.

On March 30, Reese was photographed in Nashville with brown hair while carrying her six-month-old son Tennessee.

SEE THE PHOTO! Reese Witherspoon Goes Brunette! Debuts Hair Color While Holding Son

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Photo courtesy: Getty Images