Scarlett Johansson and Colin Jost Have Welcomed Their First Baby Together!

Scarlett Johansson is officially a mama of two! The Black Widow star has welcomed a second child, her first with comedian and Saturday Night Live cast member Colin Jost. The couple were married in October 2020 and news of their pregnancy with their first child together came just days before People confirmed the baby's arrival. "We're having a baby," Colin told the audience during a stand-up show in Connecticut on Aug. 15. "It's exciting."

On Aug. 19, Colin confirmed that they welcomed a son named Cosmo. "Ok ok we had a baby," he wrote in a text post on Instagram. "His name is Cosmo We love him very much."

Scarlett is also mom to a 6-year-old daughter, Rose, whom she shares with her ex-husband, French journalist Romain Dauriac. Congratulations to Scarlett, Colin, and big sister Rose on Cosmo's arrival!