Naturally, for Vogue's March "Power Issue," the reigning best friends who run the world — Taylor Swift and Karlie Kloss — grace the cover.
Here are some of the most intriguing facts about the world's most famous friendship:
1. Taylor has blown-up, giant framed polaroids lining the wall of her apartment.
2. Taylor's expansive New York apartment features a grand piano and pool table.
"Everything in the apartment is rendered in velvet, leather, and wood in dark, rich earth and jewel tones, from her rosewood Steinway grand piano to her pool table (where VS models Behati Prinsloo and Lily Aldridge apparently proved themselves to be quite the sharks when they came over earlier in the week)," Vogue reported.
3. Karlie's family makes her leave her ~New York attitude~ at the door.
4. Taylor's influx of girlfriends was partly in response to the negative media attention about her love life.
She admits it was a reaction "to the way people were overreacting to my life. I was really irritated by the whole serial-dater play that people tried to make about me."
"I just decided I wasn't willing to provide them that kind of entertainment anymore. I wasn't going to go out on dates and have them be allowed to take pictures and say whatever they wanted about our body language," said Swift.
5. Taylor's stylist just picks out clothes and leaves them in Taylor's closet for her — so she's essentially the luckiest person on the planet.
6. They're so alike that they started subconsciously dressing the same.
"The other night I came over, and we were both going someplace from here, and we were both wearing black crop tops and high-waisted skirts. It's kind of getting weird," said Kloss.
"Black tights, hair done the same way. Just like, 'Ugh, be more annoying.' We couldn't possibly be," said Swift.
7. Karlie's boyfriend of two years is a start-up founder and invested in Instagram.
"In addition to the baking venture, Kloss has studied at Harvard Business School (her boyfriend of two years, Joshua Kushner, an early investor in Instagram who recently cofounded the health-care start-up Oscar, is an alumnus)," said Vogue.
8. Their first ~major hang~ was their well-documented road trip to Big Sur.
"A few months later they saw each other again at an Oscars after-party, and Kloss suggested they do something spontaneous," Vogue reported.
"I'd been to Big Sur once before, and I was like, 'We should just do it,'" said Swift.
9. Taylor has a collection of "old-timey nightgowns" in her apartment for sleepovers.
"She has a collection of old-timey nightgowns that she and her friends wear while watching television and—technology aside—pretending they're living in frontier days. (Swift, who shows me a picture on her phone of her, Cara Delevingne, and Kendall Jenner all lying in her bed looking like Little House on the Prairie, inspired Dunham to start her own collection.)," Vogue reported.
10. Taylor probably takes home the prize for Best Texter.
11. Taylor is pretty much the exact opposite of Regina George (sorry, Katy Perry).
12. Taylor had about 20 people fly in for her famous 25th birthday party — the one with those Instagram pics that made your jaw drop.
"Swift returns to her apartment well past midnight, orders sushi, and sets up a makeshift photo booth to host what seems like every famous person in music. She has invited all her fellow performers (Iggy Azalea, Charli XCX, Ariana Grande, Sam Smith, Nick Jonas), along with other friends ranging from Kloss to Abigail Anderson—Swift's best friend since freshman year of high school in suburban Hendersonville, Tennessee—to Justin Timberlake and Jay Z and Beyoncé," Vogue reported.
"I have, like, 20 different people flying in. My friends are staying in every room," said Swift.
13. Taylor wore a yellow dress to the Golden Globes in honor of Lorde's "Yellow Flicker Beat" nomination.
"When Lorde sounded stressed about going to the Golden Globes, Swift showed up in support wearing a bright-yellow dress (in honor of Lorde's nominated song, "Yellow Flicker Beat")," said Vogue.
14. When she's not on the runway, Karlie will be hitting the books while studying at NYU.
"She's been accepted to NYU's Gallatin School of Individualized Study. (NYU alum Christy Turlington Burns wrote her letter of recommendation.)," Vogue reported.
"I was waiting for the mail to arrive every single day. It's something that I've wanted to do for a very long time," said Kloss. "I'll still be working full-time. I'm incredibly ambitious and have lots of goals within my career that I'm not slowing down on anytime soon."
15. Karlie insists that Taylor is basically the friendship whisperer.
"I've met a lot of really great girls through Taylor. She's incredible at connecting people who might not normally meet. We're all in different jobs, but we've become strong friends who are there for each other—a sisterhood of girls, a support team," said Kloss.
"But we're also just normal 20-something girls, and I think you have to have people that you can be that with. You know, real friends are hard to find—and Taylor's a real friend. There's nothing better."