The 56-year-old actor and his yoga teaching love were joined at the event by the hostess of the evening, actress Bridget Moynahan.
Alec and Hilaria are expecting their second child together. They already have a 18-month-old daughter named Carmen, and he has a daughter, Ireland, 19, from a previous marriage.
Bent On Learning is a nonprofit organization committed to teaching yoga to New York City public school children.
FYI: Hilaria is wearing the Isabella Oliver dress.
15+ pictures inside of Alec and pregnant Hilaria Baldwin at the gala… More Here! »