Beyonce Knowles, Sarah Jessica Parker, Kerry Washington, Ricky Martin and Chanel Iman are joining Anna Wintour’s Runway to Win collection to benefit President Barack Obama’s re-election campaign.  As one of his biggest backers, Anna’s power to entice celebrities to join her cause is huge.  Beyonce, a new mom, has created onesies, $75 for three, to outfit your babies.  Sarah Jessica Parker partnered with Tracy L Cox of Faster Than Paris on a tee that says “Viva Obama,” Ricky Martin designed a tee with the message “Unidos,” actress Kerry Washington also lend a hand by collaborating with Stefani Greenfield and Desiree Gruber on a paisley print scarf, and model Chanel Iman has created a backpack.

Rachel Zoe has also jumped on board with a bag soon to be unveiled on the Runway to Win site.  Among other designers who have already contributed to the collection are Tory Burch, Prabal Gurung, Nanette Lepore, Proenza Schouler, Marchesa, Rachel Roy, Derek Lam, Alexander Wang and Vera Wang.