New Year, New You in 2014

Work It! The Hottest Celebrity 'Healthies'

Fit-spiration! See the selfies Jessica Alba, Carrie Underwood, Karlie Kloss and more buff stars snap between reps


The supermodel has a very special (not to mention adorable!) personal trainer: daughter Vivian Lake, whom she welcomed with husband Tom Brady last December. "Practicing yoga with my little partner before going to work," she wrote on Instagram.