Photo credit: Tinseltown /

Huge congratulations to Scarlett Johansson and Colin Jost, as they have just become parents to a beautiful baby boy!

This is the married couple’s first child together, while Scarlett Johansson is also mother to her six-year-old daughter, Rose Dorothy, who she shares with ex-husband Romain Dauriac.

Although Scarlett Johansson and husband Colin Jost have kept things very under wraps – we didn’t even know ScarJo was pregnant until a few days ago, let alone that she had already given birth! – the new parents have decided to share the name of their newborn with the world…

The 36-year-old Black Widow actress and the 39-year-old Saturday Night Live star have named their son Cosmo… and we are kind of obsessed with the name!

“Ok ok we had a baby,” Colin Jost wrote on Instagram.

“His name is Cosmo. We love him very much.

“#wegotawaywithitforalongtime #nokidspolicy #we’regoingtodisneyworld

“privacy would be greatly appreciated”.

Congratulations again to Scarlett Johansson and Colin Jost!