Mischa Barton emerges from Byron & Tracey hair salon a blond after getting her hair done. Mischa was

Mischa Barton emerges from Byron & Tracey hair salon a blond after getting her hair done. Mischa was

Mischa Barton emerges from Byron & Tracey hair salon a blond after getting her hair done. Mischa was

Mischa Barton on the set of "Law & Order: SVU" for a guest starring role as a hooker who has a myste

Mischa Barton on the set of "Law & Order: SVU" for a guest starring role as a hooker who has a myste

Mischa Barton on the set of "Law & Order: SVU" for a guest starring role as a hooker who has a myste

Mischa Barton on the set of "Law & Order: SVU" for a guest starring role as a hooker who has a myste

Mischa Barton leaving the Byron and Tracey salon in Beverly Hills on December 3, 2009.

Mischa Barton leaving the Byron and Tracey salon in Beverly Hills on December 3, 2009.

Mischa Barton leaving the Byron and Tracey salon in Beverly Hills on December 3, 2009.

Mischa Barton leaving the Byron and Tracey salon in Beverly Hills on December 3, 2009.

Mischa Barton at the 2009 Whitney Museum Gala at The Whitney Museum of American Art in New York City