A star is (about to be) born! Broadway darling Lin-Manuel Miranda and wife Vanessa Nadal are expecting their second child together. The couple shared the news at last night’s London Evening Standard Theatre Awards in London.

“Secret’s out! Thanks, red carpet!” Miranda said in a photo caption on Facebook. “Sebastian’s gonna be a big bruddah!”

Miranda added on Twitter that their three-year-old is super pumped. “He is so impatient for it. Once, mid-tantrum, he cried, “When is mommy gonna HAAAATCH…”