Looks like Don was last to arrive ... because about 10 minutes after he got there, the string of blue balloons were released into the sky. So, all signs point to them having a boy, unless someone screwed up the release.
Chris' big baby news came one week after Gwyneth Paltrow tied the knot with her new guy, Brad Falchuk. Chris didn't attend their wedding ... he was performing at the Global Citizen Festival in NYC, and Dakota was there with him.
Interesting, when Dakota walked onstage she was wearing a very baggy outfit and overcoat. Little did we know, she had a baby on board.