Heidi Klum was perfectly creepy — and incognito — in her iconic Halloween costume

Michael Jackson‘s “Thriller” is on nearly every curated Halloween party playlist, so it was only a matter of time before the song manifested itself at the ultimate Halloween bash.

On Oct. 31, Halloween queen Heidi Klum dressed as the werewolf in the Thriller music video — replete with a cast of zombies — to attend her 18th annual eponymous soiree, held at the Moxy Hotel in New York City and sponsored in part by SVEDKA Vodka. Klum was unrecognizable to those in attendance, including this style writer who unknowingly walked right beside her.

Given the hype around the party, all the regular people (see: non-celebrities) made major efforts to arrive in their Halloween best. There was no shortage of mermaids and mermen, glamorous skeletons, and Maleficents, dressed so convincingly it was as though they walked off a Hollywood set.

Of course, the non-celebrities were roped off from the VIP section, where DJ Questlove reigned, guarded meticulously by security.

Also seen: Mike Myers in military garb, his Austin Powers co-star Heather Graham in Día de los Muertos garb, designer Zac Posen as a zombie, and Nick Cannon as a Black Panther.

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Alexandra Mondalek is a writer for Yahoo Style + Beauty. Follow her on Twitter @amondalek.