Nicollette Sheridan and Michael Bolton have called off their engagement.

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The Desperate Housewives actress and the How Am I Supposed to Live Without You singer – who have had an on-off relationship since 1992 – split “amicably”, according to Nicollette’s representative.

Nicole Perna revealed to People magazine: “Nicollette Sheridan and Michael Bolton have amicably ended their engagement. They appreciate your respect for their privacy in this matter.”

The 44-year-old actress and her 55-year-old beau had originally started dating in 1992 but split after five years together. They reunited in 2005 and announced their engagement in March 2006.

Upon announcing their wedding plans, Nicollette said: “Michael is a wonderful human being. He has brought me a profound love and support. He is an amazing sounding board for me.

“I am the happiest now I’ve ever been in my life, feeling more grounded than I ever have. For me there’s only been one person, and that’s Michael.”

Michael added: “Nicollette and I are very serious about each other. I am very committed. It is a very special time in my life. I have a good feeling about the future.”

Nicollette was previously married to actor Harry Hamlin. Michael has three daughters with ex-wife Maureen McGuire, who he divorced in 1990.