Cynthia Nixon thinks pink. via flickr.com

Today is the last day of Breast Cancer Awareness Month, so CGG urges you to think pink on the inside while wearing Halloween's orange and black on the outside. This October, celebs came out by the dozens to raise awareness and funds for breast cancer research. And one of the most popular breast cancer charities with the stars is the Susan G. Komen for the Cure Foundation, an org that has raised more than $1 billion towards finding a cure for every stage of the disease. In addition, they provide quality care and community grants for breast health and treatment. (The charity was founded in 1982 and named for a woman who, "during her diagnosis, treatments, and endless days in the hospital . . . spent her time thinking of ways to make life better for other women battling breast cancer instead of worrying about her own situation," according to their official site.)

Among their star supporters are Aimee Teegarden, Andie MacDowell, Cynthia Nixon, Elisabeth Hasselbeck, Five for Fighting, James Woods, and Marcia Cross.

Most recently, Mel B. has showed her support for the foundation by helping to launch PoseForTheCure.com, where designer items can be purchased with proceeds going towards the cause.

And official ambassador for the foundation, Cynthia Nixon, took stood up to breast cancer at their annual Race for the Cure event. "Talk with your doctor, make healthy lifestyle choices and most importantly, know your body," Cynthia writes on the Komen website, "as that can make all the difference in the world."

Julianne Moore, Courtney Cox, David Arquette, Cindy Crawford, Tori Spelling, and Bog Saget all designed hand-decorated and autographed limited-edition pink ducks for infant and toddler products designer and manufacturer Munchkin Inc.'s third-annual Project Pink campaign celebrity auction. All the proceeds from this month's week-long event went to Susan G. Komen.

Lastly, Aimee Teegarden hosted the 5th annual YMI Jeans Fashion Show on Oct. 9 which raised money for the charity as well.

Other major breast cancer charities include the Breast Cancer Research Foundation, whose supporters include Liv Tyler, P. Diddy, and Sir Elton John, and Breast Cancer Care, whose celeb spokespeople include Charlotte Church, Emma Thompson, Jamie Cullum, Naomi Campbell, Nicole Kidman, Sharon Osbourne, Sienna Miller, and Sting.

But you don't have to be a star to Do Something about breast cancer. Get started right now by getting educated: Check out our 11 quick facts about breast cancer.

FYI: Ever wonder where the pink ribbon originated? According to Wikipedia, it was the joint idea of Self magazine and cosmetics company Estee Lauder. However, the Susan G. Komen staff were reportedly the first to distribute pink ribbons a year earlier during a race for breast cancer survivors in 1991.