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Jimmy Fallon Belts Out His Best Musical Number Yet, Guest Starring… Himself?

Also his scariest musical number yet.

Jimmy Fallon belts out brilliant musical numbers almost every single night like it's his job — because, well, it actually is.

But on last night's episode of The Tonight Show, Fallon finally topped himself… thanks, in no small part, to himself.

Your eyes do not deceive you: That's Fallon channeling his inner "Orphan Black" as a bunch of Fallon clones join him in a stunning take on "Barbara Ann" by The Beach Boys. Except it's actually a closer cousin of "The After Hours," the classic episode of "The Twilight Zone" where a bunch of mannequins come to horrifying life. Here, it's wax museum models, but that doesn't make it any less terrifying. On the contrary, their lifelike resemblance of Jimmy quickly gives way to one of the most frightening Fallon bits in recent memory.

Frightening, fantastic… whichever F-word you prefer, it all comes down to Fallon. Great work as always, Jimmy. Now try to get some sleep, and don't let the wax models bite.