The 40-year-old's latest hilarious video begin with him answering a call from his mom as The Beach Boys' song "Barbara Ann" plays as his ringtone.
"Hey Mom!" the former SNL star says. "They just dropped off my wax figures from Madame Tussauds. It's amazing. The details, everything, it looks just like me."
After admiring the five identical wax figures in his dressing room, Fallon starts singing "Barbara Ann" to himself when out of nowhere, creepy voices chime in to harmonize with him.
It's not long before Fallon and his wax figures are rocking and rolling as they eerily sing together. The lifeless figures even dance, sway and clap while performing. At one point, Fallon's Tonight Show pal Questlove stumbles in and hilariously blurts out, "What the f--k?"
In the end, Fallon wakes up in bed to realize the whole thing was a dream (or should we say nightmare?). "It was just a dream," Fallon says with a sigh before finding the wax figures in his bed! Ew!
Watch the funny, yet totally creepy, clip for yourself.