Although the Mad Men actress wasn't able to remember her exact first acting job during her interview with The Daily Beast, she recalled playing Oscar-winning actress Gwyneth Paltrow in an advert at the start of her career.
"It was sort of a spoof on the Oscars, and some other actor played a Jack Nicholson type, and I was kind of spoofing Gwyneth Paltrow winning the Oscar," Jones shared.
"I was, like, in a pink dress or something. I don't remember. Silly."
Jones also revealed that she has the doll of her Mad Men character Betty Draper, which she keeps in her son Xander Dane Jones's room.
The actress recently said that she saved her placenta from the birth and turned it into vitamins.
She explained: "It's not witch-crafty or anything! I suggest it to all mums! Your placenta gets dehydrated and made into vitamins."
Watch January Jones's full interview with The Daily Beast below: