Primetime inevitability Kelsey Grammer's hard-partying past has finally caught up with him, as the 53-year-old actor suffered a "mild heart attack" while vacationing at his Hawaiian home. According to Star magazine, the actor was swimming in Kona (by contrast, ETOnline claims he was paddleboating at the time, then gave birth to twins) when his "heart stopped for a few seconds." He was later airlifted to Honolulu for tests and observation, and will be released soon: "Kelsey is doing fine now and he will be going home tomorrow," [flack Stan Rosenfield] said. Not since the Grammers were paid by Glaxo Wellcome to promote awareness of Irritable Bowel Syndrome—only to later learn the drug they were promoting made symptoms worse and could sometimes prove fatal—has the couple been so energized by a medical cause. Let the Lipitor-shilling commence! [Star]