Celebs working out: Kim Kardashian and Gisele Bundchen

Kim Kardashian was spotted leaving the a gym in Studio City, California. The reality star carried a yellow Hermes Birkin handbag.

Is Kim K getting in shape for her upcoming wedding to Kris Humphries?

See Gisele Bunchen below leaving the gym. Find out her hydration drink of choice!

Supermodel Gisele Bundchen keeps her envious figure in check by hitting the gym. The mom (and wife of Tom Brady) carries a Balenciaga handbag and drinks a coconut water.

 WENN