Fashion designer, television host, singer-songwriter―these are all titles Kelly Osbourne can lay claim to. But we’d like to add “badass fitness guru” to that list, because the daughter of famous rocker Ozzy Osbourne has lost 70 pounds and counting. Ms. Osbourne is realistic about maintaining her health, allowing herself to give in to cravings every so often, as well as keeping her workouts fun. You can often find her hula-hooping with pals on a Friday night — what’s not to love about that? Osbourne has dealt with bullying and media criticism and even suffered from a seizure last year, but she is living proof that if you make personal health a top priority, you’ll always trump the naysayers.