Act-Off! Who Is Your Favorite Fashion Star: Jessica Simpson or Nicole Richie?

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On tonight’s series premiere of “Fashion Star,” pop culture princesses turned fashion queens Jessica Simpson (who brought us The Jessica Simpson Collection) and Nicole Richie (who brought us House of Harlow 1960) will serve as mentors to top designers hoping to break into the big fashion business scene. With the winning designer’s line hitting store shelves at the end of each episode, their advice (along with third mentor John Varvatos) to the contestants can heavily shape the outcome of the game. But we want to know: who has made the bigger difference on the world and will get your action — Jessica or Nicole?

Nicole Richie

You may know her from “The Simple Life,” but since the show wrapped, Ms. Joel Madden has become a mother and quite the philanthropist. In 2007, she founded the Richie Madden Children’s Foundation alongside her hubby, Joel, and his twin brother, Benji Madden. The foundation “provides direct assistance to those in need and seeks to raise awareness of systemic issues like health care, education and human rights as they impact disadvantaged children in the United States and around the world,” according to Nicole’s blog. One of the organizations her foundation has recently rallied support for is UNICEF; She attended their winter ball in December, which raised over $1.3 million to save and improve children’s lives worldwide. In recent years, Nicole has also worked with UNICEF on a PSA for Myanmar relief and to raise money for world water projects.

+ Jessica Simpson

One of the key components of a great outfit: the shoes! Putting fashion aside for a great cause, the very pregnant ”Newlyweds” star went barefoot for Soles4Souls during last year’s Barefoot Week. “It’s an honor to donate shoes to help Soles4Souls as they do incredible things for the less fortunate people in this world,” she said of her participation. “I encourage everyone to lend support.” For some, shoes are fashionable; for others, it’s a basic need — 300 million people around the world are without shoes. Like Jessica, you can give back by leaving fashion behind for a day. This June, participate in Soles4Souls’ One Walk to help raise money for the cause. $1 = one pair of shoes!

Ready to take action for your favorite? As they say, a little bit goes a long way.