The 14-year-old A.N.T. Farm actress dolled up in a cute BCBGeneration romper for the annual event.
Sierra is also pictured at the Finding Nemo 3D premiere held at El Capitan Theatre earlier in the week and Fashion’s Night Out 2012 at The Beverly Center the week before.
Kelli Berglund is also pictured below at the Finding Nemo 3D premiere.
10+ pics inside of Sierra and Kelli…