It's Vanessa Hudgens!
The High School Musical star shared the adorable pic with her fans on her official blog, and wrote:
“Everyone, say hello to the original Catwoman. Me! Hahaha just saw The Dark Knight Rises and WOW.”
Aww, she was so cute when she was little! Maybe you guessed from the clue that she'd starred in a big movie series that it was Nessa.
Congrats to Wambie girls Maya, Evi, and Love for being the first three to guess right.
Source: Vanessa Hudgens Official