The stars were just a few of the thousands who participated in the 12th Annual EIF Revlon Run/Walk For Women, which raises money for breast and ovarian cancer research.
Launched in 1993 by Lilly Tartikoff, Revlon, Inc. and EIF, the Run/Walk event has raised nearly $55 million in grants to date, between the events in New York and Los Angeles.
For new mom Jessica Alba, she had hoped the event would be a family affair, but her 10-month-old daughter, Honor, wasn't quite up for the challenge.
"I was going to bring my daughter, but I think she's still on LA time," Alba joked with Access Hollywood.
And while the Run/Walk event is a "go-at-your-own-pace" endeavor, Jessica Biel was hoping to hit the ground running.
"I'm a runner today," she told Access prior to the event. "Well, that's the goal. Who knows what's going to happen?"
Meanwhile, comedian Jimmy Fallon was all smiles as he prepared to hit the streets.
"There's a great spirit out here. A great energy," he said. "It's so much fun."
The Run/Walk will hit LA on Saturday, May 9, with over 60,000 participants expected to be on hand. Among the stars that are slated to participate are Christina Applegate, Miley Cyrus and "Dancing With the Stars" judge Carrie Ann Inaba.
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PLAY IT NOW: 2009 REVLON Run/Walk For Women, New York (May 2, 2009)
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