In September, Aaron Rodgers shared his plans to dress up as "a hero of mine who has long-ish hair" for Halloween this year
Aaron Rodgers
Aaron Rodgers
| Credit: Christopher Polk/Getty

The reason behind Aaron Rodgers' long hair has been revealed!

The Green Bay Packers quarterback, 37, dressed up like Keanu Reeves' title character from the John Wick film franchise for Halloween in an Instagram post he shared on Saturday.

In his photo, Rodgers is seen with fake blood on his face and hand while clutching a pitbull in the backseat of a car, nearly matching the first photo he shared of the canine-loving hitman from the trilogy. (Hilariously, Rodgers tagged teammate David Bakhtiari as the dog in his post.)

"Boogeyman," Rodgers captioned his post, referencing Wick's nickname.

Aaron Rodgers Grew Out His Hair For His John Wick Halloween Costume
Credit: Aaron Rodgers/Instagram

Several of Rodgers' fellow Packers — including Marquez Valdes-Scantling, David Bakhtiari and Tom Crabtree — approved of their teammate's costume choice in the comment section.

Arizona Cardinals tight end Zach Ertz called Rodgers' costume "Commitment" — and indeed, it was.

During an appearance on The Pat McAfee Show in September, Rodgers teased that his 2021 Halloween costume "has been a year in the making."

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"I'm not going to give it away," he said at the time. "But he's a hero of mine who has long-ish hair."

Also in the last year, Rodgers announced his engagement to actress Shailene Woodley, who confirmed the news in February in an interview with Jimmy Fallon on The Tonight Show.

Rodgers' previous Halloween costumes prove he's a cinephile. He previously took inspiration from Napoleon Dynamite's Uncle Rico and the title character from The Life Aquatic with Steve Zissou.