Cody Simpson and Booboo Stewart Celebrate Teens for Jeans

Happy birthday Cody Simpson! The Australian singer turns 15 today.

Cody attended and performed at the 5th Annual “Teens For Jeans” Volunteer Event hosted by Kristen Bell last night in Hollywood. From January 16 through February 12, DoSomething.org is asking for you to donate your gently worn jeans to any Aeropostale or P.S. by Aeropostale store near you.

Booboo Stewart, Julianne Hough, Chris Galya, Brendan Robinson, and Josie Loren also attended the event.

Click inside for more pics from the event and watch Demi Lovato’s PSA for teensforjeans.com below.