Olivia Wilde and Jason Sudeikis announced on Wednesday that Wilde gave birth to their son on Sunday, April 20.
Their rep confirmed they welcomed their son Otis Alexander with People. The 30-year-old actress then announced the news herself in a tweet.
She jokingly wrote, "Ladies and gentlemen. Otis Alexander Sudeikis has LEFT the building! (I'm the building)."
Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building! (I'm the building) pic.twitter.com/uHfY3adroc
— olivia wilde (@oliviawilde) April 23, 2014
The couple announced in mid-January after the Golden Globes they were expecting a baby boy. She quipped to People, "Until about a week ago, I just looked fat! I wanted to be like, "I'm not fat, I'm pregnant."
According to NBC News, Wilde and the 38-year-old Sudeikis got engaged in January, but have been together for three years.
Both have been married before. The Rush actress was formerly married to Italian musician Tao Ruspoli, while the Saturday Night Live alum was married to Kay Cannon.
Image from Twitter via Olivia Wilde