Kelly Osbourne suffered a 30-second seizure on the set of her Fashion Police TV show today and ended up in the hospital, reports ET Online. The 28-year-old is reportedly doing fine, though it's not clear what triggered the episode. During shooting in front of a studio audience, Osbourne turned to co-host Melissa Rivers and said she didn't feel well, reports TMZ. She then fell to the floor and began shaking, while Rivers, crew members, and an EMT who happened to be in the audience came to her assistance. (Brother Jack Osbourne has MS, and mom Sharon recently had a double mastectomy.)