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By UsWeekly

Lindsay Lohan has gone back to her roots.

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Fresh off her "Saturday Night Live" hosting gig, the actress, 25, showed off her new dye job in Beverly Hills, California Thursday. Though she's been blonde for years, Lohan has finally returned to her natural red hue.

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The actress has become increasingly concerned about her appearance, multiple insiders tell the new issue of Us Weekly (on stands Friday). "Lindsay is worried about losing her looks," an insider says. "She has a lot riding on this comeback."

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The former teen queen's younger sister, Ali, also recently got a makeover. On Sunday, the aspiring model showed off her new shoulder-length bob while shopping with Lindsay in New York City's SoHo neighborhood.

Tell Us: Do you prefer Lindsay Lohan as a redhead?