FILE - Mandy Moore arrives at the 25th annual Critics’ Choice Awards in Santa Monica, Calif. on Jan. 12, 2020, Moore announced the birth of her first child, a son named August Harrison Goldsmith, on her Instagram Tuesday. “Gus is here,” Moore wrote in the post along with a photo. This is the first child for Moore and husband Taylor Goldsmith, a musician she married in 2018. (Photo by Jordan Strauss/Invision/AP, File)

FILE - Mandy Moore arrives at the 25th annual Critics’ Choice Awards in Santa Monica, Calif. on Jan. 12, 2020, Moore announced the birth of her first child, a son named August Harrison Goldsmith, on her Instagram Tuesday. “Gus is here,” Moore wrote in the post along with a photo. This is the first child for Moore and husband Taylor Goldsmith, a musician she married in 2018. (Photo by Jordan Strauss/Invision/AP, File)

LOS ANGELES (AP) — Mandy Moore is officially a mom. The 36-year-old “This Is Us” star announced the birth of her first child, a son named August Harrison Goldsmith, on her Instagram Tuesday.

“Gus is here,” Moore wrote in the post along with a photo. “He was punctual and arrived right on his due date much to the delight of his parents.”

She added that they were prepared to, “Fall in love in all sorts of brand new ways, but it goes beyond anything we could have ever imagined.”

This is the first child for Moore and husband Taylor Goldsmith, a musician she married in 2018.