Robert Downey Jr. welcomes a baby girl

It's a girl for Robert Downey Jr. and his wife, Susan!

I read the news (where else?) on Twitter, when Ellen Degeneres tweeted, "Congrats @RobertDowneyJr & Susan! It's a girl! I thought up name options—Iron Girl, Pumpernickel, Ellen. I’m sure one of those will work."

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Hmm, "Iron Girl" has a nice ring to it. But, we do actually know the baby's name now. Robert just posted it (hilariously) on his Facebook page:

After 9 months of intensive development, Team Downey is pleased to announce our 2014 fall/winter project. Principal photography commenced 11-14 and will continue until she says, 'Dad! You are embarrassing me...I'm 30, this has gotta stop.' Yep...Avri Roel Downey joined the party @ 3:22 a.m. on November 4th...she's 7lbs even, spans 20 inches, and is accompanied by a variety of Susan's traits that have seemingly overwritten my 'junk DNA,'" he wrote. "I'll post pics here + there when I'm not too busy staring...

Baby Avri Roel joins big brother Exton Elias Downey, 2.5, and Robert's son with ex-wife Deborah Falconer, Indio Downey, 21.

In case you missed it, check out Robert's hilarious acceptance speech at last week's BAFTA's, in which he salutes his very pregnant wife. We knew she was about to pop, but we had no idea she was this about-to-pop!

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Robert, 49, and Susan, 40, have been married for nine years and work together as producing partners at Team Downey. Catch Robert in his latest flick, The Judge.

Congrats to the family!

Love! xo Haley-O Celebrity Candy: Follow along as Haley Overland delivers the latest scoop on celebrity families—plus sweet celeb interviews! You can’t have too much of this candy, so check back often.