The Grammy award-winning singer announced the birth of her third child, a baby boy, Monday on Instagram.
Winter Mercy Morissette-Treadway was born on August 8, the post said.
Morissette has two other children with husband, rapper Mario Treadway, who goes by his stage name, SoulEye.
Their son Ever Imre was born in 2010 and daughter Onyx Solace was born in 2016.
“As a kid, I imagined having children and being with an amazing partner,” she said. “This is a whole other wrench I didn’t anticipate.”