Watch Julianna Margulies Reveal Her Good Wife Hair Secret

Julianna Margulies is known for looking impeccable on her hit CBS series The Good Wife. But as the actress told David Letterman when she visited the Late Show on Wednesday night, she has a little help in the hair department.

The curly-haired actress wears a custom-made wig in her role as Alicia Florrick. Letterman, who seemed shocked at the news, commented on the “fantastic” look of the hair piece. Turns out, that level of wig quality comes at a price — $10,000 to be precise. Margulies has said in the past she prefers the wig as it saves her time getting ready before filming.

The new season of The Good Wife premieres on March 1.