• "The Office" star Angela Kinsey appeared on "The Ellen DeGeneres Show" on Monday and spoke about running into 18-year-old singer Billie Eilish and having no idea who she was. 
• Kinsey said she was at the airport when Eilish, wearing "a big boxy jumpsuit," asked to take a photo with her. 
• The actress said that her phone blew up after the "Bad Guy" singer shared an image of them together on her Instagram. 
• Eilish is a big fan of the NBC sitcom and even sampled "The Office" on her song "My Strange Addiction."
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"The Office" star Angela Kinsey had no clue who Billie Eilish was when 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 recalled during an appearance on Monday's episode of "The Ellen DeGeneres Show," which was coincidentally guest-hosted by costar Ellie Kemper (Erin Hannon), with fellow "Office" alum Jenna Fischer (Pam Beesly).

"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,'" Kinsey continued.

The actress, known for her role as Angela Martin on "The Office, went on to say: "And we took a selfie and then all of a sudden my Instagram was going crazy because this girl named Billie Eilish posted a photo of me and her."

"She was so sweet," Kinsey said, explaining that she didn't know who Eilish was because the actress is "a dinosaur."

However, she did Google the pop singer and concluded that "she's a very talented young lady."

Fisher also chimed in and recalled her response when Kinsey told her about the encounter. 

"Angela told me and I was like, "Who is she? And we're like two old ladies. We were like, 'Well, she's very popular with today's youth. Her music speaks to them.'"

"And she's very fashion-forward,' Kinsey said of Eilish. 

In March 2019, Kinsey posted the aforementioned photo with Eilish on Instagram and congratulated the "Bad Guy" singer on the release of her debut album, "When We All Fall Asleep, Where Do We Go?"

"We met at the San Francisco airport awhile back and I'm a dinosaur so I had no idea how talented you are!! I have loved catching up with you on Instagram. And the song 'My Strange Addiction' has a nice lil' snippet from 'Threat Level Midnight!' Your #theoffice Mom is over here rooting for you! Way to go!" Kinsey captioned the post, referring to Eilish sampling an episode of "The Office" on her song "My Strange Addiction." 

The same photo, plus another one, was shared by Eilish back in March 2018.

Fans of Eilish know that she's obsessed with "The Office." In addition to sampling the show, which Steve Carell (Michael Scott) said gave him a lot of credibility with his kids, she has met a few of the cast members.

In July 2019, Creed Bratton shared a photo of himself greeting Eilish after attending one of her and O'Connel's "incredible" shows.

Prior to that, the pop star met Rainn Wilson (Dwight Schrute) and he quizzed her on her knowledge of "The Office" in a video for Billboard. 

Eilish also caught the attention of Mindy Kaling (Kelly Kapoor) after the actress learned about "The Office" being sampled on her song. 

Eilish rose to fame after releasing a song called "Ocean Eyes," which was written and produced by older brother Finneas O'Connell, on SoundCloud in 2015. But in 2019, she became a breakout artist with her album, which included songs like "Bad Guy" and "When the Party's Over."

She also made history as the first artist born in the 2000s to have a No. 1 album on the Billboard 200 chart, appeared at Coachella, made her "Saturday Night Live" debut with a trippy, gravity-defying performance, and got nominated for six Grammy Awards. Plus, she made history as the youngest artist to be nominated in all of the show's top categories.

Eilish is known for her dark-pop sound and whisper-like vocals, in addition to her unique fashion sense. She frequently wears baggy clothing and previously said that she refrains from donning form-fitting outfits for fear of being sexualized or body-shamed. 

Watch the video below (Kinsey talks about Eilish at 1:38).

• Read more:
• Ellie Kemper recalled 'The Office' costar Rainn Wilson crying during their last scene together on the series finale
• Steve Carell says he 'gained credibility' with his kids when Billie Eilish sampled 'The Office'
• Angela Kinsey opens up about her relationship with 'Office' costar Jenna Fischer: 'We didn't expect to make such a close friendship later in life'

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