Jessica Alba Says ‘Bye-Bye Brown Hair’ And Hello To Sinful Blonde Locks

Jessica Alba is set to reprise her role as Nancy Callahan, from the 2005 cult movie "Sin City," and her beautiful brown tresses just won't do.

The former "Dark Angel"  is saying 'Bye bye" to her brunette mane and hello to new sinful blonde locks. Off course, she documented the gradual process via Twitter. Thanks Jess!

 "Bye Bye brown hair" she wrote, followed by this pouty pic.

Later, Alba tweeted a second photo, writing, "Stage 1 -- ok it doesn't look that different but it's a process."

But the next step showed her embracing her new ombre locks with her stylists at the Robert Ramos of Estilo Salon in Los Angeles, cheering her on in the background . "Stage 2 of Sin City 2 Nancy hair." The caption read.

Alba may be willing to experiment with her hair for new movie roles but absolutely refuses to pose nude. "I don't do nudity. I just don't," she told Elle magazine "Maybe that makes me a bad actress. Maybe I won't get hired in some things. But I have too much anxiety."

In 2008, the actress sued Playboy for publishing a revealing photo of her without permission.

"Playboy has violated my personal rights and blatantly misled the public who might think I had given them permission to put me on their cover when I didn't," Alba said in a released statement. "I'm simply protecting my personal rights and I hope that they will think twice before they try to do this to someone else."

"It was against who I am and what I represent. I've been working so hard to be somebody else, and it just wasn't cool." She reinforced to Elle magazine during an interview.

To make amends, Playboy founder Hugh Hefner apologized and donated an undisclosed sum to Alba's favorite charities, "Keep A Child Alive" and "Until There's A Cure," according to People magazine.

Alba has two daughters with her producer husband, Cash Warren, Honor and Haven.