Michael Bolton

The two-time Grammy winner is known for his power ballads, but he has a more booming message these days: Stop domestic violence. "One out three women will experience physical or sexual violence in their lifetime," he says. "It's unfathomable to me."

Last August, Bolton, who has a greatest-hits DVD out this summer, teamed up with Oscar-winning documentary maker Maryann De Leo (Chernobyl Heart) to produce Lifetime's April 10 special, Terror at Home: Domestic Violence in America. "You listen to these stories and your jaw just drops," says Bolton, 52, who became involved in the cause while visiting shelters near his Connecticut home. The divorced dad with three daughters—Isa, 29, Holly, 27, and Taryn, 25—has also testified before Congress on the subject and admits it's hard not to take the topic to heart. "Ask any father," he says. "If someone hit one of my daughters, I'd intervene immediately. They'd have to take me away."