Your head has to be in the sand if you haven't recognized that Eleven, the powerful little girl with a healthy appetite for Eggos, is the most popular "Stranger Things" Halloween costume.

But Business Insider wanted to see just how popular the character from Netflix's show really is this Halloween. To find out, we partnered with technology and marketing platform Amobee.

It analyzed real-time content consumption across the internet, video, social, and mobile in the week leading up to Halloween (October 23-to-31) to determine which "Stranger Things" characters were generating the most engagement.

And what Amobee found supports the popular sentiment. Eleven is the most popular "Stranger Things" topic of discussion in the week leading up to Halloween and in discussions involving costumes in the same period. The last time discussion about Eleven costumes peaked was during last month's New York Comic Con.

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So which characters were the runner-ups to Eleven? No. 2 is Barb.

Never again will Barb go forgotten. She received 76% of the digital engagement Eleven did in the week leading up to Halloween. And in costume-related engagement, Barb got 38% of the engagement Eleven got.

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@alexa_chung when your pal borrows your #ArchivebyAlexa for her barb costume 🎃 pic.twitter.com/9If9KCYQj2

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@KFCBarstool@FeitsBarstool unreal barb costume pic.twitter.com/KrDUnk5oD3