Liv Tyler gave birth to a baby boy on Wednesday, according to People.
"He's healthy and everyone is very happy," her rep told People.
A source told the magazine that the actress' son arrived six and a half weeks early and he won't be able to go home from the hospital right away.
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This is the first child the "Leftovers" star and boyfriend Dave Gardner have had together.
Liv is also mom to 10-year-old son Milo William Langdon, who she had with ex-husband Royston Langdon. Dave, a sports manager/agent, has another son, Grey, 7, with ex-wife Davinia Taylor.
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A rep for the actress did not immediately respond to a request for comment from Access Hollywood.
-- Paige Feigenbaum
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