Billy Joel has split from his third wife. The "Piano Man" singer - who was previously wed to his business manager Elizabeth Weber Small and supermodel Christie Brinkley - and chef Katie Lee Joel have ended their marriage but insist the break-up is amicable.

Billy's spokeswoman said: "After nearly five years of marriage, Billy and Katie have decided to separate. The decision is the result of much thought and consideration. Billy and Katie remain caring friends, with admiration and respect for each other."

Break-ups were in vogue this year as our readers helped pick the Top 10 Biggest Celebrity Break-Ups of 2008:

1. Madonna & Guy Ritchie The "Material Girl" and her main Guy were voted the biggest celebrity break-up by far. The two made plenty of headlines with their split, which according to rumors involved Madonna's growing friendship with Yankees player Alex Rodriguez.

Former supermodel Christie Brinkley wasn't pleased when ex-husband Peter Cook appeared on Friday on TV. She is considering legal options for Cook's breach of confidentiality agreement.

Cook appeared on Barbara Walter's "20/20" show for an interview and talked about his failed marriage with Brinkley.