Sometimes you can keep a secret for only so long. That ' s what happened to three icons last week who went public about long-hushed romances.

Barbara Walters: Says she had affair in the '70s with Sen. Edward Brooke of Mass.

Cher: Romanced Tom Cruise after he starred in "Risky Business." She was 39. He was 23.

Mariah Carey: We know that Nick Cannon is in her new video. But are they married, too?