Fleetwood Mac star Mick Fleetwood has filed for separation from his third wife. As the rock supergroup prepares to hit the road again after reuniting last year (12), the drummer is going solo in his private life. He wed Lynn Susan Frankel in 1995 and the couple has 11-year-old twin daughters. The Fleetwoods split last year (12). Fleetwood has cited irreconcilable differences as the cause of the split and he is requesting joint legal custody of the kids.