Barbie and Ken are all dolled up at Jacob’s Pillow festival

The gloriously silly Barbie sections are accompanied by a piped-in voice, breathy yet virginal, sharing greeting-card wisdom - “When you live your dreams you’ll find your destiny’’ and earthier goals - “My biggest dream is that Ken would walk in the door and ask me on a date.’’ Naturally, that’s when Ken (Sean Donovan, who excels in his menagerie of supporting roles throughout “Beauty’’) walks in. Before you can get in your Barbie Dream’Vette, the two are on the floor having stiffly unsexy sex.

The deadpan slapstick bubbles over when they perform the “Four Little Swans’’ dance from “Swan Lake.’’ Baker is the lone “human’’ alongside three Barbies, and while she’s kicking it through the tricky warhorse, the others hilariously struggle to keep up, given the doll’s tragic lack of turn-out and flexibility; she’s eternally on high demi-pointe, but can’t actually stretch her toes.

When Comfort turns to the darker side of the pursuit of physical perfection, “Beauty,’’ alas, is often only skin deep, as the issue of eating disorders is tackled with the insight and subtlety of an “Afterschool Special.’’ Still, the truth of her larger theme - that while most of us believe in the beauty of the individual, we still fall into easy traps - is cleverly illustrated at the dance’s end when audience members gamely vote for which Barbie should be crowned the winner. Ouch.