If the famous smile or the wholesome, preppy look doesn't give it away then the perfectly-decorated Christmas tree ought to do it.
Lifestyle guru Martha Stewart posted this adorable festive picture yesterday for "Throwback Thursday" on her Facebook and Instagram accounts.
She captioned it, "Spending the day celebrating with loved ones and remembering my favorite past Christmas memories. Here's me on Christmas at age 14. #TBT"
In the picture, a teenage Martha Stewart wears a mint green ball gown and a string of pearls as she sits with perfect posture and poise in front of a huge Christmas tree.
The 72-year-old's fans remarked how beautiful she looks and compared her to a princess. One even said she looked like Wendy from Peter Pan.
Martha, who grew up in Jersey City, NJ, has posted dozens of "Throwback Thursday" images since joining Instagram in June 2012.
She first posted a black-and-white image of herself aged 4 wearing braids in her hair and carrying a small doll.
Others have included old magazine covers she has appeared on and more personal snaps from her younger days.
Martha returns to PBS in January 4 with Martha Stewart's Cooking School.