Cleveland Cavaliers v Brooklyn NetsAll hail LeBron James, king of basketball and Halloween.

Celebrities love dressing up for the holiday. Gwyneth Paltrow spoiled her character's fate in "Se7en," while Kristen Bell was forced by her daughter to be Elsa from "Frozen." Bruce Willis embodied one of the twins from "The Shining."

But James may take the Halloween cake with his costume, as Pennywise the Clown from "It":

Georgie!! Georgie!! #HappyHalloweenFolks ????????

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Pennywise will likely be a popular costume this year, after the runaway success of the horror movie. But the NBA star eerily looks like a clone of star Bill Skarsgard. He even has the balloons!

James wore the outfit at a Halloween party he hosted for his fellow Cleveland Cavaliers. He wasn't the only one rocking a great pop culture costume. Here's Tristan Thompson and Khloe Kardashian as Khal Drogo and Daenerys Targaryen from "Game of Thrones":