When celebrities don’t know who other celebrities are.

During her appearance on the The Ellen DeGeneres Show on Monday, The Office star Angela Kinsey spoke about running into Billie Eilish, who is now 18 years old, and having no idea who she was. It was a funny scenario, Kinsey recalled, because the pop star approached her for a photo once.

“I was at the airport and there was a really cute gal in a jumpsuit, like a big boxy jumpsuit,” Kinsey said. “It was sort of an odd-fitting jumpsuit, and she came up to me and she was like: ‘I love “The Office.” Can we take a picture?’ And I was like, ‘Sweet person in a big jumpsuit, yes.’”

When the “Bad Guy” singer posted the photo on her Instagram, the actress said that her phone blew up and her Instagram went crazy.

Kinsey jokingly added that she did not know who Eilish was because she is “a dinosaur.” But after the whole incident, the actress Googled the pop singer and concluded that “she’s a very talented young lady.”

When Eilish released her debut album, “When We All Fall Asleep, Where Do We Go?” Kinsey posted the selfie of the two together at the San Francisco airport and congratulated the singer.