Robert Downey Jr. and wife welcome a baby boy

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We're betting "Iron Man" is going to get a little softer now that he's a dad again.

Robert Downey Jr. and wife Susan welcomed a bundle of joy known as Exton Elias Downey in Los Angeles on Tuesday, Feb. 7. The little boy was born at 7:24 a.m. and measures in at 20 inches and 7 lbs. 5 oz., a family friend tells People.

"Everyone is healthy and they couldn't be happier," the source says.

Little Exton is the latest addition to the family, which also includes Indio, Downey's 18-year-old son from a previous marriage, and the two kittens the couple adopted last year.

Downey announced his wife's pregnancy in August, but accidentally let the baby's gender slip while on "The Tonight Show" with Jay Leno in December.

"I can never really stay mad at him, but I can tell you it wasn't something that we had planned to reveal," Susan says of the mistake. 

"If I told you the name, she would lop off my head with a machete," Downey joked.
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