The couple, who got engaged in April 2011, "have been separated from some time now," but still remain good friends and dedicated parents to their son Bingham Hawn Bellamy, 3.
Rocky relationship rumors have been swirling since early this year when Hudson, 35 was seen without her engagement ring on at the Oscars.
"My parents aren't married," Hudson said." And one of the reasons why they never got married is because they had been married before and they liked it the way it was. They didn't feel like they needed a piece of paper to be committed."
The pair was last seen together on November 21, at Goldie Hawn's MindUp charity event in Beverly Hills.