A woman is made over to look like Rachel Bilson.

Summer gets schooled when Rachel Bilson gets a wet and wild punk. Jadakiss jams to traffic when he gets Punk'd in the car.

Chuck battles with his real love life and "cover" love life when he meets a very pretty girl named Lou (recurring guest star Rachel Bilson), who seems interested in the real Chuck.

When Chuck starts dating Lou (recurring guest star Rachel Bilson), a sandwich maker, and things seem to be going really well, the situation incites some jealousy from Chuck's "ex-girlfriend" Sarah, who discovers that her feelings may not have been just part a cover story.

Stuart: Therapist Stuart's antics make a therapist go mental. Madvertising: UPS Find out what can Brown do for you. Real Mofo: Black History Month Guest stars Snoop Dogg and The Arch Bishop Don Juan battle with host Dollar Bill Montgomery. The OC Meets American Idol Guest Stars Adam Brody, Rachel Bilson, and Benjamin McKenzie of The OC are joined by American Idol standards "William Hung," "Justin Guarini," and "Clay Aiken." Coach Hines: The Assembly Coach Hines, tight shorts and uptight temper, continuously threatens students during the principal's disciplinary assembly.

A woman is made over to look like Rachel Bilson. Check out the final reveal here.

A woman is made over to look like Rachel Bilson. Check out how they do it here.

A woman is made over to look like Rachel Bilson. Check out what she looked like before our experts got a hold of her.

"Jumper" star Rachel Bilson talks about dating in Hollywood

What's Rachel's style secret to "superhero" chic? She'll tell you!