ICYMI, Kate Upton has one of the most bangin' bods in the Hollywood and like many actresses and models, she works hard on her fitness to maintain her trim and curvy figure. The 23-year-old former Sports Illustrated cover girl was recently photographed popping some squats at a West Hollywood gym, under the supervision of what appeared to be a male personal trainer. PHOTOS: Kate Upton's bikini body In 2013, Upton's personal trainer Justin Gelband talked to Shape magazine about the actress and model's fitness regimen , saying she does Zumba, Capoeira, Pilates and yoga.