What the Stars are Doing for Valentine's Day

The Heart Truth Campaign unveiled its milestone 10th Red Dress Collection at the Hammerstein Ballroom in New York City Wednesday night, where celebs like Christie Brinkley, Gloria Estefan, Rebecca Romijn, Aisha Tyler and Minka Kelly walked the runway in red dresses created by America's top designers to raise awareness of heart disease.

Christie Brinkley, who looked stunning in a red Pamella Roland gown, shared the importance of the glamorous fashion show.

"I'm so happy that there's this big turnout, because women need to know that heart disease is the number one killer of women in America, and there is something that we can do about it -- and that's the good thing," she said.

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She also took some time out to defend fellow supermodel Gisele, after the backlash caused by her post-game Super Bowl comments.

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"I mean, every fan in that stadium was emotional -- and, it's her husband," she told ET. "And I'm sure she didn't mean to say anything bad about the team, but everybody else was emotional."

As for her Valentine's Day plans?

"No, [no plans] yet -- I'm open," she smiled.

Check out the video to hear Aisha Tyler and Gloria Estefan's special Valentine's Day plans, as well as why the romantic day will be "sad" this year for Rebecca Romijn.