Billie Eilish claims she’s the world’s biggest fan of “The Office”, so the show’s star Rainn Wilson decided to put her to the test.

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In a video from Billboard, the actor surprises Eilish at her home, and then sits her down for a series of tricky trivia questions.

After a false start at the beginning that Eilish attributes to nerves, she proceeds to ace Wilson’s questions in the first round.

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Next, Wilson reads off a series of quotes from “The Office”, and Eilish has to guess which character said them. Naturally, she knocks that challenge out of the park as well.

Fans of Eilish already know her “Office” obsession very well. The singer even went so far as to include audio clips from the sitcom in her song “My Strange Addiction”.