Check out these funny outtakes from Ashley Greene and Justin Long‘s most recent Teens for Jeans PSA for DoSomething.org and Aeropostale!

The campaign, which kicked off January 19 and ends February 14, is on track to receive a record number of donated jeans for homeless youth and those affected by the Haiti disaster. Celebs including Taylor Swift, AnnaLynne McCord and Ellen DeGeneres have all shown their support, and now you can too!

To learn how you can help, visit TeensForJeans.com!