London: Kate Hudson who is pregnant with `Muse` frontman Matt Bellamy, is reportedly engaged to the rocker.
The couple hosted a family party at a London hotel on Monday after jetting from Los Angeles to celebrate the engagement, reported Sun online.
The 32-year-old rocker and the Oscar nominated actress, 31, confirmed last week they were expecting a baby.
"It was an intimate party. They kept their engagement secret as they wanted to celebrate with their nearest and dearest before it became public knowledge," said a source close to the couple.
Hudson`s mother, actress Goldie Hawn and her partner, Kurt Russell along with Bellamy`s parents were the special guests at the party.
The `How To Lose a Guy In Ten Days` star already has has a seven-year-old son Ryder, from a previous marriage to `Black Crowes` singer Chris Robinson.