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The Heart Truth’s annual Red Collection Fashion Show helped kick off New York Fashion Week tonight! Seventeen stars—including the Jenner clan (who presented a united fashion front in Badgley Mischka), fitness expert Jillian Michaels (in Cushnie et Ochs), Jamie Chung (in David Meister), and more—channeled their inner models to strut down the runway in New York’s Hammerstein Ballroom wearing vibrant red dresses by a variety of designers, combining fashion and famous faces to help raise awareness for heart disease. “Losing my mom because she wasn’t healthy really inspired me to live a healthy life,” two-time Red Dress Fashion Show model Minka Kelly (in Oscar de la Renta) told InStyle.com of the event, which was sponsored by the National Heart, Lung, and Blood Institute, Diet Coke, and WebMD. “It made sense to get involved and to inspire other women to take care of their hearts. This was a very lucky opportunity for me.” And there’s another reason to get involved, which Today anchor Savannah Guthrie (in Carolina Hererra) put best: “Who doesn’t dream of getting glammed up from time to time and having this experience?” Indeed! Click through the gallery to see all of the celebrities who walked the runway.

— Sharon Clott, with reporting by Meghan Blalock and Jennifer Davis

“I’m so nervous!” Kelly Osbourne told InStyle.com backstage before she hit the runway for The Heart Truth’s Red Collection 11th Anniversary Fashion Show, sponsored by the National Heart, Lung, and Blood Institute, Diet Coke, and WebMD. The butterflies-in-the-stomach feeling was one that radiated through backstage at the Hammerstein Ballroom in New York, where 17 stars prepared to walk the runway for a cause—raising awareness for women’s heart health—and InStyle.com had an all-access pass to see every mani, makeup, and hair strand get perfectly in place. “It’s so out of my comfort zone,” fitness guru Jillian Michaels said as she primped for the show. “But this is such a cool event, I’m so excited. Not only about awareness, it’s also just fun!” Click through the gallery to all of the candid behind-the-scenes moments.

Misha Nonoo is a designer to watch! Creations by the 25-year-old—who was born in Bahrain before being schooled in London, Paris, and New York—have been spotted on Minka Kelly, Gwyneth Paltrow, and most recently, InStyle cover girl Amanda Seyfried at a Les Miserables press luncheon this week. “[Seeing a celebrity in my clothes] is great because it’s a different take on how I would do it,” Nonoo told InStyle.com of her clothing at the FGI Night of Stars event earlier this year. “I design a look head to toe, and maybe they don’t wear it that way. It’s just refreshing to see how people put things together.” And you’re bound to see more stars in her designs: After launching her label in 2010, she quickly became known for creating sculpted shapes with precise fits, and in February of this year, she took home Fashion Group International’s Rising Star Award for Women’s Ready-to-Wear. And you can get a piece of the celebrity-loved label! Her designs range from $250 to $2,500, on nonoony.com, and be sure to heed her advice when doing so: “Look at the sizing guides! We have a very European fit. It’s very much for everyday, with a designer aesthetic.” Noted!

Plus, see more of Gwyneth’s favorite designers.

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