Alec and Hilaria Baldwin are the proud parents of a new baby boy.br The happy couple welcomed their fifth child on Tuesday.br Hilaria shared the news Wednesday on Instagram by posting a photo of her and her actor husband with their newborn.br She captioned the photo; "He is perfect and we couldn't be happier".br The couple are also the parents of Romeo, 2; Leonardo, who turns 4 on Saturday; Rafael, 5; and Carmen, 7.br Alec Baldwin also shares a 24-year-old daughter, Ireland, with his ex-wife, actress Kim Basinger.