Jennifer Lawrence: Maria Howell is Seeder in 'Catching Fire'

Jennifer Lawrence shows off her fit figure as she heads to the gym on Monday (August 13) in Santa Monica, Calif.

The Hunger Games actress, who will celebrate her 22nd birthday THIS Wednesday (August 15), attended the Day of InDulgence party the day before.

It was just announced that Revolution‘s Maria Howell will be joining The Hunger Games: Catching Fire as Seeder, who “gives Katniss vital information about the families of Rue and Thresh,” according to EW.

10+ pictures inside of Jennifer Lawrence heading to the gym…