Ashley Tisdale Picks Up 'Left Behind' Book

Ashley Tisdale takes a quick call as she leaves the gym on Tuesday afternoon in West Hollywood, Calif.

The 27-year-old actress is keeping up her fitness routine for the new year.

PHOTOS: Check out the latest pics of Ashley Tisdale

“Gotta do my homework. So excited to be a part of this project #leftbehind #stoked,” Ashley tweeted earlier today with a pic of the “Left Behind” book.

In the upcoming film adaption, Ashley will play Chloe Steele who wanders America looking to find any remaining members of her family after millions of people suddenly disappear from the planet.

TELL JJJ: Have you read the “Left Behind” books?

10+ pics inside…