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Olivia Wilde and Jason Sudeikis welcome baby boy

Olivia Wilde and Jason Sudeikis attend the 2014 Vanity Fair Oscar Party hosted by Graydon Carter on March 2, 2014, in West Hollywood, Calif.
Pascal Le Segretain/Getty Images

Olivia Wilde and Jason Sudeikis have become parents for the first time.

Wilde gave birth to son Otis Alexander on Sunday.

She revealed the news on Twitter:

Wilde, 30, and Sudeikis, 38, got engaged in January 2013. They've been dating since 2011.

Sudeikis was previously married to screenwriter Kay Cannon. They divorced in 2010. Wilde's divorce from filmmaker Tao Ruspoli was finalized in 2011.