The actors are helping raise awareness for the third annual Teens for Jeans campaign, to encourage youngsters to help fight homelessness amongst their peers by donating jeans.
Ash thanks the New Moon world tour for opening up her eyes, and there's a pretty sweet incentive if you all help out...
"When I heard the statistics, it was hard to ignore," explains A.G. "Traveling the country for Twilight and New Moon has given me the opportunity to meet teens from a wide variety of economic backgrounds. I want to do everything I can to help young people take action about this important issue."
Between Jan. 19 and Feb. 14, people are encouraged to bring in any brand of their gently worn jeans to any Aéropostale store in the U.S. and Canada.
Aéropostale and DoSomething.org will make sure the jeans are donated to one of the 600 local youth shelters that have been selected as partners.
As an extra bonus for those who donate, Aéropostale will give an additional 25 percent off a new pair of jeans, though no purchase is necessary. Donors will also have the chance to win signed jeans from Shia LaBeouf, Chris Pine, Penn Badgley, Dakota Fanning, Taylor Swift and many more of today's young stars.
Hey, Ash and Justin, if you get Robert Pattinson in to sign a pair (used or not), we're pretty sure you'll triple your donations! Just a thought.
Good thing Ash and Justin can hold down the charity fort while another do-gooder couple take a break...
Brangelina took time off from saving the world, one adopted child at a time, to celebrate the birthday of a kid they already have.
Just two days after Zahara's fifth birthday, Brad and Angie treated their whole brood of kids to sweets from Crumbs Bake Shop in Los Angeles.
The Jolie-Pitts ordered up a large red velvet cake and cupcakes with sugar cookie hearts on top and 6 dozen mini cupcakes. Presh!
—Additional reporting by Taryn Ryder and Ashley Fultz
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