According to FemaleFirst, musician Tanya Haden gave birth to Jack Jr. a little over a week ago.
The School of Rock actor confirmed the news Saturday (May 31) during the premier of his new animated film, Kung Fu Panda, in which Black is the voice behind the main character.
The actor spoke about his newborn, saying he was "fresh out of the oven," and elaborated, "I have a new one. It’s eating every three hours."
Black and Haden are also parents to a 23-month-old son, Samuel.