Matthew Bellamy and Kate Hudson Matthew Bellamy and Kate Hudson

It appears Kate Hudson isn't Matt Bellamy's muse after all. The celebrity couple has ended their engagement after four years together, People reports.

Hudson, 35, and Muse frontman Bellamy, 36, announced their engagement in April 2011. The pair has a son, Bingham Hawn Bellamy, who was born in July 2011.

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"Kate and Matt have ben separated for some time now," a rep for Hudson told People. "Despite this, they remain very close friends and committed co-parents."

Hudson was previously married to Black Crowes frontman Chris Robinson, who is the father of her 10-year-old son Ryder. The couple split in November 2006.

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