Reese Witherspoon's youngest child is officially a preteen — and she celebrated by sharing a rare photo of her lookalike son.

Reese Witherspoon shared a sentimental birthday tribute to her youngest son Tennessee James, whom she shares with ex-husband Jim Toth, on Instagram on Sept. 27. Tennessee's siblings, Ava and Deacon Phillippe,

Blonde hair and bright blue eyes aren’t the only things Reese Witherspoon passed down to her preteen son Tennessee “Tenn.” The Legally Blonde alum shared a new picture with her newly minted 12-year-old and revealed one big way her youngest child,

It's a big day for Reese Witherspoon's youngest son, Tennessee, who celebrated turning 12 years old. Of course, Witherspoon posted a sweet message to commemorate the milestone—a