Ashley Benson & Sasha Pieterse -- Do Something Awards 2011

Ashley Benson and Sasha Pieterse hit the blue carpet at the 2011 Do Something Awards held at the Hollywood Palladium on Sunday evening (August 14) in Hollywood.

The Pretty Little Liars stars were there not only to honor their peers, but also one young “do-er” who will receive a grand prize of $100,000 for their cause.

The grand prize went to Sarah Cronk for The Sparkle Effect — an innovative, student-run program that helps high school students across the country create cheerleading squads that include students with disabilities.

FYI: Ashley wore a Zac Posen dress with Jimmy Choo sling backs and accessorized with a Ferragamo clutch and Mesca earrings.

10+ pics inside of Ashley and Sasha…