ET's own Mary Hart has decorated a custom pair of jeans -- for a good cause!

Mary is participating in Blue Jeans in Pink, a new fundraiser by retailer Coldwater Creek that will raise funds for Susan G. Komen for the Cure, the world's largest breast cancer advocacy organization.

Starting today and running through October 31, shoppers can enter to win Mary's jeans, as well as jeans decorated by Marg Helgenberger, Debra Messing, Susan Lucci, Andie MacDowell, Gabrielle Union and even Nancy G. Brinker, who founded Susan G. Komen for the Cure. There is no purchase necessary to enter, and no donation is required, but shoppers will also be able to donate money to Susan G. Komen for the Cure at any of the Coldwater Creek retail shops nationwide or at coldwatercreek.com. The retailer will match all donations made through this program up to $100,000, and has already donated more than $5.8 million to the breast cancer organization.

To find out how you can enter, visit www.coldwatercreek.com/komen or visit a Coldwater Creek shop.