Claire Foy Performs "Rapper's Delight" on 'Tonight Show'

Claire Foy-Jimmy Fallon-Publicity-H 2018
Andrew Lipovsky/NBC

Claire Foy showed off her rapping skills when she visited The Tonight Show on Thursday.

"I heard that you know all the lyrics to 'Rapper's Delight,'" said Jimmy Fallon. He then pulled out a microphone and asked the actress to rap The Sugarhill Gang song.

The very hesitant Foy grabbed the microphone before she began the song. "Oh my God," she shouted when The Roots started to play the music.

"I said a hip hop / Hippie to the hippie / The hip a hop, and you don't stop, a rock it out," she began. Foy slowly got more into the performance as she started to dance in her chair and smile.

"Me, the groove, and my friends are gonna try to move your feet / See, I am Wonder Mike, and I'd like to say hello/ To the black, to the white, the red and the brown / The purple and yellow," she continued as Fallon danced in his seat next to her.

The performance concluded with Foy breaking out into laughter before Fallon bowed down to her.

Earlier in the show, Foy discussed her upcoming hosting gig on Saturday Night Live.

After she shared that she is excited for Saturday's episode, she said that she is familiar with the show. "We don't have it in England. It's not broadcast, but I think it's one of those things that is everywhere," she said. "You know if there's been a really good sketch because everyone watched it on YouTube."

Foy added that everyone on the set has been "really lovely." She said that they treat her like she's "supposed to be there, where I just feel like a complete imposter."

"I've done theater and stuff. I feel like I should be more nervous than I am," she said about the live aspect of the show. "I feel like there's something wrong with me. I'm not having sleepless nights. I'm just going, 'This is fun.' But I think on Saturday I'll be like, 'This isn't fun anymore.'"