After four years together, actress Kate Hudson and Muse frontman Matt Bellamy have called it quits, ending their engagement.

"Kate and Matt have been separated for some time now. Despite this, they remain very close friends and committed co-parents," Bellamy's rep stated to ET. 

VIDEO: Kate Hudson Talks To ET About Marrying Matt Bellamy In May 2014

Hudson and Bellamy began dating in 2010, and in April 2011 the couple got engaged. Three months later, Hudson gave birth to the couple's first child together, Bingham Hawn Bellamy. 

Hudson has another son, 10-year-old Ryder, from her previous marriage to musician Chris Robinson, singer for The Black Crowes.

Hudson talked to ET back in May, where she said marriage was in the cards for her and Bellamy, despite the long engagement and rumors that the two had been having problems.

VIDEO: Kate Hudson Reveals Her Best On-Screen Kiss

"I think we will [get married] for the kids at some point," Hudson told ET. "But it's still just not something we're focused on planning."