“I heard some weird rumor on the internet,” Fallon, 44, announced to groans from Foy. “...I heard that you know all the lyrics to ‘Rapper’s Delight.’”
The former star of The Crownwas immediately mortified by her secret talent being revealed, laughing hysterically and covering her face with her hand. It seemed as if Foy thought she wouldn’t have to prove her knowledge of the 1979 Sugarhill Gang hit, but that all changed when Fallon pulled out a microphone.
“Oh my God! That was a drum roll. That’s a microphone,” Foy exclaimed before taking the mic and asking the band to cue her in for the song. What followed was an unbelievable, on-beat cover of the first bit of the track that you have to see to believe.