Barbies as Action Figures
It's a musical, played by Barbie(s)/Christie, Ken/Steven, a Barbie Britney Spears doll (all Mattel "Barbie-dolls"), all set up by Holly Dodd when she was fourteen (or early fifteen).
Holly's photos of Holly's Barbies (and Kens) for Holly's purposes
(a musical—maybe you can figure out which one)
Holly explains that they're now action figures, because you're not supposed to take their clothes off.