Olivia Wilde, Jason Sudeikis welcome baby; son's name is Otis Alexander Sudeikis

Olivia Wilde, and Jason Sudeikis arrive at the

Olivia Wilde, and Jason Sudeikis arrive at the Oscars at the Dolby Theatre in Los Angeles on March 2, 2014. (Credit: AP / Chris Pizzello)

LOS ANGELES - It's a boy for Olivia Wilde and Jason Sudeikis.

A spokeswoman for the "Tron: Legacy" actress confirms the couple welcomed son Otis Alexander on Sunday.

Wilde posted a message on Twitter Wednesday with a photo of her cuddling the newborn. It says, "Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building!" and then notes in parentheses that she's the building.

The 30-year-old "Rush" and "House" actress is engaged to the 38-year-old "We're the Millers" actor and former star of "Saturday Night Live."

It's the couple's first child.

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