Kate Hudson is truly bumpin' along to the beat of her man's music now.
Hudson and her British beau started seeing each other last year, taking their romance public in July at a Muse show in Paris.
They're so international!
"It was not planned, but they are excited and embracing it," a source close to the Almost Famous star told Us, which first broke the baby news.
This will be Bellamy's first self-produced bandmate. Hudson has a 7-year-old son, Ryder, with ex-husband Chris Robinson.
Hudson and the Black Crowes frontman split in 2006 after nearly six years of marriage.
(Originally published Jan. 12, 2011, at 5 p.m. PT)