Actress Kate Hudson appeared on the Today show Wednesday to promote her latest film 'Something Borrowed. During her chat with Matt Lauer she announced she is engaged to rocker Matthew Bellamy.

It was Lauer who noticed a large diamond ring on Hudson's finger.

I'm engaged! the 32 year old actress said. It just happened a week ago. I'm so glad you noticed. I haven't really announced it ... I was waiting for someone to notice.

Hudson refused to give any details on how Bellamy, the lead singer of the band Muse, proposed. All she said was that It was very sweet. It was very romantic.

Hudson and Bellamy have been dating for approximately a year and are expecting a child together in the next few months. While Hudson said she doesn't want to learn the sex of the baby, she believes it is a girl.

The couple has yet to set a date for their wedding.