Kate Hudson, Matt Bellamy Aren't Secretly Married: Source

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Did Matt Bellamy finally -- and secretly -- make an honest woman out of Kate Hudson?

Some wondered whether the actress and Muse rocker, 33, had an on-the-downlow wedding after Hudson's famous mom Goldie Hawn gave a confusing interview to British paper Evening Standard.

"When my daughter Kate married an English rock star it didn't worry me," the bubbly actress, 66, says. "All that matters is that the relationship is a good one."

But a source close to Something Borrowed star Hudson tells Us Weekly it's "not true" that Hudson and Bellamy, parents to 8-month-old son Bing, tied the knot in secret. The insider notes that Hawn herself never wed longtime beau Kurt Russell, but frequently refers to him as her "husband" -- and seems to have the done the same for her daughter.

Hudson and Bellamy were spotted in Riviera Maya, Mexico over the weekend. Following Hudson's split from Yankees slugger Alex Rodriguez, the couple debuted their romance in late spring 2010; they met years ago in Australia.