He noticed a huge diamond ring on her finger and she revealed she'd gotten engaged to Matt Bellamy, lead singer of the British rock band Muse, a week ago. She says she was waiting for someone to notice.
No wedding date has been set.
Hudson and Bellamy are expecting their first child.
Thirty-two-year-old Hudson says she's having a girl.
Hudson also has a 7-year-old son, Ryder, from her marriage to Chris Robinson of the Black Crowes.
