Alexandra Daddario Goes Blonde for 'Percy Jackson'!

Alexandra Daddario shows off her lighter locks as she films new scenes for Percy Jackson & The Olympians: The Sea of Monsters at the Ambleside Pier in Vancouver on Tuesday (April 17).

The 26-year-old actress plays Annabeth Chase in this film franchise. If you recall, Annabeth was blond in the books, too!

PHOTOS: Check out the latest pics of Logan Lerman

While shooting, Alexandra, Douglas Smith and Logan Lerman all jumped on a green-screened sea monster.

ARE YOU GLAD that Alexandra went blonde for the role?

15+ pics inside…