Last night in New York City, celebrities, socialites and designers kicked off 2012 Mercedes Benz Fashion Week in a sea of red at the 'The Heart Truth's Red Dress Collection 2012 Fashion Show' at Hammerstein Ballroom.

But unlike most fashion week shows, you didn't have to be a professional model to rock the runway! Stars including Christie Brinkley, Rebecca Romijn, Minka Kelly and even 'Millionaire Matchmaker's' Patti Stranger all strutted their stuff down the catwalk wearing red in honor of a good cause-- supporting the National Heart, Lung, and Blood Institute by reminding women to protect their heart health, with the "Red Dress" as the symbol of it all.

Check out some celebs that walked the runway last night in New York for the cause. We heard there were a few stumbles, a lot of laughs and definitely a lot of bright dresses--which we love, because there's so many cute ways to wear red these days! Stay tuned as Fashion Week coverage continues from New York City!