Meet Reese Witherspoon’s son Tennessee

Reese Witherspoon is finally giving the world a glimpse of her newborn son!

The actress brought 6-week-old Tennessee along while running errands in Los Angeles on Tuesday. Wearing a chambray shirt and skinny jeans, the 37-year-old was in full-on mommy mode. When the infant started to fuss in his stroller, she scooped him up and lovingly rested him on her shoulder. Aww.

Tennessee, whose name is a nod to where Witherspoon grew up, is certainly a handsome little fella with just a little bit of light-colored hair. He was dressed in a cozy-looking navy blue and green outfit, which showed off his tiny fingers and toes.

[Related: Reese Witherspoon gives her baby a place name — and other stars who have done the same]

Witherspoon, who is married to talent agent Jim Toth, has been seen out and about several times since she gave birth on September 27 — mostly on the sidelines of her 8-year-old son Deacon Phillippe's soccer games, as well as at the opening of the Rag & Bone flagship store in L.A., where she hung out with Cameron Diaz — but this is the first time she's been seen with her adorable baby.

Earlier this week another new celebrity parent publicly thanked Witherspoon for helping to keep his baby news a secret. Brian Austin Green said that the press didn't find out that his wife, Megan Fox, had given birth to their son, Noah Shannon Green, until two weeks after the fact because Witherspoon gave birth the same day.

"We got really lucky," Green told Ryan Seacrest. "We were lucky enough to go in at 2:30 in the morning to the hospital and nobody knew. We were there for two days … and we heard Reese was at her place and had a baby, and we got out of the hospital and nobody knew [about us]. We got home and thought, 'This is unbelievable,' because we weren't expecting to get away with it."

[Related: Megan Fox and Brian Austin Green welcome a son]

He added, "I've been wanting to send Reese Witherspoon flowers for, like, a month and a half. Reese, your ice cream cake is on the way!"

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