She's working on her fitness, all right!

On Thursday, Elle Fanning looked ready for a workout as she and her toned midriff headed to Dove's Bodies in North Hollywood.

The 16-year-old actress has been coming into her own since following in her sister Dakota's footsteps and doesn't seem to be slowing down any time soon.

Next up for the budding star is the film Young Ones, a futuristic western which also stars Michael Shannon and is written/directed by Gwyneth's brother Jake Paltrow. Sounds like an interesting flick!

Check out the trailer for Young Ones below.