Inside Kim Kardashian's Friendship With Sam Smith

The reality TV star and the "Stay With Me" singer go way back.

ByABC News
January 30, 2015, 1:53 PM
Kim Kardashian shared this image with Sam Smith to her Instagram account, Jan. 30, 2015.
Kim Kardashian shared this image with Sam Smith to her Instagram account, Jan. 30, 2015.
kimkardashian/Instagram

— -- Kim Kardashian isn't just a friend of Sam Smith -- she's a fan, too!

The reality TV star attended the singer's concert Thursday night with her sisters Khloé and Kendall and model Cara Delevingne.

"We sang all night long!!!" she wrote on Instagram.

It's no surprise that Kardashian, 34, and her crew got backstage access to the show and hung out with Smith afterward. The two have been friends for some time.

In August, the "Keeping Up with the Kardashians" star met Smith for the first time backstage at "Jimmy Kimmel Live," and later that month, introduced him at the MTV Video Music Awards.

"She's just the sweetest girl ever," he gushed of her that November. "I really get on with her and she's very calming. And we always have lovely calm conversations."