The reality star was tasked with wearing an entirely sheer dress for the star-studded event at SIR Stage 37, and she certainly did it with confidence.
She shared a video of her new hair on La Perla's Instagram page, blowing kisses to her fans.
Atkin - a mainstay among the Kardashian/Jenner family - had teased Kendall's latest haircut for her Snapchat following on Thursday.
"I really don't see what the big deal is with going braless", she wrote on her website/app previous year.
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Kylie Jenner's hair color may go from platinum blonde to seafoam green to navy blue faster than you can say "new Lip Kit launch", but sister Kendall's look is as usually pretty consistent.
A brief video stopped short of actually showing the full do, but Kendall could still be seen cowering as Atkin tried to cajole her into accepting another 'spritz'.
Stepping out on the runway in the risqué, lace creation, the 21-year-old's incredible body was all on show in the embellished number.
Appearing at the La Perla lingerie runway show at New York Fashion Week, Kendall premiered her blunt cut, where her hair only reaches her chin.