There are some pretty crazy fan theories floating around cyberspace about “Home Alone”, and Macaulay Culkin has heard about them.

The 37-year-old actor — star of the iconic John Hughes comedy — appeared on Friday’s “Tonight Show”, and discussed some of the crazier fan theories.

I’ve heard some. There’s the, oh, that I’m Jigsaw,” Culkin told Fallon. “That Kevin McCallister grew up to become Jigsaw from ‘Saw’.”

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He also took a deep dive into another wild claim that Elvis Presley — who apparently faked his death in 1977 — makes a secret cameo in the 1990 film.

Describing the Elvis theory as “one of the earliest ones,” Fallon explained some people believe the “Hound Dog” singer makes a brief appearance, sporting a beard, in the scene where Kevin’s mom (Catherine O’Hara) is trying to change her plane tickets at the airport.

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“I didn’t realize Elvis turned into Richard Karn,” Culkin joked of the alleged Elvis in the background of the scene, who appears to look more like the former “Home Improvement” sidekick than the King of Rock ‘n’ Roll.

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