Karen O is pregnant.
The Yeah Yeah Yeahs singer and husband Barnaby Clay - who married four years ago - are expecting their first child together, though it is unclear when the baby is due.
The couple haven't made an official announcement about their happy news but the 36-year-old singer - whose real name is Karen Lee Orzolek - appeared at the Rock and Roll Hall of Fame Induction Ceremony Show in Cleveland, Ohio, on Saturday (18.04.15) in a tight-fitting minidress that clearly showed off her growing bump under a studded leather jacket.
The 'Zero' singer teamed with her bandmate Nick Zinner to perform a version of Lou Reed's 1973 track 'Vicious' before the late rocker's widow Laurie Anderson accepted his induction into the hall.
Karen wrote on Instagram: "Lou is being inducted into the Rock'n'Roll hall of fame Patti [Smith] is inducting him and me and @little_vampire will be there to sing a song in his honor #hellocleveland! (sic)"
And after the ceremony, she tweeted: "Laurie recited Lou's 3 rules to live by- be afraid of no one, get a bulls**t detector and learn how to use it, have tenderness. YES.(sic)"