Colin then posted on Instagram, saying that the couple had indeed had a baby son named Cosmo.
This news might be a smidge surprising, given that Colin only confirmed that ScarJo was pregnant...yesterday.
However, rumors had swirled around Scarlett's potential pregnancy for a while now, especially as she was notably absent from a whole bunch of Black Widow events.
In case you didn't know, Scarlett is also mom to her 6-year-old daughter, Rose Dorothy.