There's no business like show business: At a grand old theater on Avenue Wagram, Viktor & Rolf staged a tap-dancing event in the best tradition of Hollywood's golden years.

A procession of nimble, nubile girls with Louise Brooks bobs and glittering eyelashes high-kicked, stomped and shimmied their way onto the stage, wearing beige, white and light-denim pantsuits, Mackintoshes and pleated shorts. Silver trims on lapels and cuffs, and scalloped edges and ruffles on pristine white shirts, shone in the spotlight. Black tuxedos with wide pants looked adorable rather than severe when accessorized with delicate hair bows; fitted black suits dazzled with white piping. To close the show, the designers themselves took to the stage and executed a perfect dance routine. Now that's entertainment!

The event was an undisputed crowd pleaser: At one point, as the music segued from "Singing in the Rain" to a bizarre tap/hip-hop redux, André Leon Talley, Isabella Blow and Mario Testino all jammed discreetly in their seats. Best of all, we can be sure that Viktor & Rolf's clothes look good on women of all sizes—there was not a 6-foot supermodel in sight. All of the girls on stage were dance students from the Lucia Marthas academy in Holland.