Legendary actress Grace Kelly and reality star Kim Kardashian have a lot more in common than we previously thought.
Having first found careers in the US, the pair both went on to marry 'royalty' - Kelly to actual royalty in her marriage to Prince Rainier III and Kardashian to rap star Kanye West - and have inspired generations of women with their fashion know-how.
However, little did we know the pair also share the same waist size.
Last night, Kim shared a new video on her app titled 'Never-Before-Seen Footage of My Book Club', giving her fans a sneak-peek into the group she started with BFFs Chrissy Teigen and celebrity hairstylist Jen Atkin last year.
In February 2017, Kim tweeted to her social media followers: 'So guys….@ChrissyTeigen & @JenAtkinHair & I are starting a book club! I'm making them read Embraced By the Light as our first book!'
But if you thought the group would be discussing the intricacies of Naomi Alderman' science fiction novel The Power, or Zadie Smith' Swing Time being long-listed for the 2017 Man Booker Prize, think again.
Because E! News reports that in an episode of Keeping Up With The Kardashians , the 36-year-old new mum can be seen revealing her waist size to sister Kourtney, before Embraced By the Light author Betty J. Eadie arrives for the club's meeting.
Prior to Eadie's arrival, Kourtney reportedly tells Kim: 'I can't take your hips seriously right now...because your waist is so small and then your hips are so big.
The social media mogul then went on to reveal that her waist is a tiny 24 inches.
'It's never been 24 ever in my life,' she says before adding that her hips are 39 inches.
In November, the reality star opened up about her newfound love of fitness thanks to body builder and trainer Melissa Alcantara.
In a 2017 episode of KUWTK, Kim admitted to Kris Jenner: 'I'm going to start a really crazy diet. I was looking on Instagram and this body builder popped up on my page and she had gained 70 pounds in her pregnancy. Her kid's like 6 now. She is like ripped.
'Melissa is a trainer I found. She's super inspiring to me and I really want to meet up with her and she if she could train me. She could help direct my food and really get me on an amazing path.
If I was 10 percent like her it would be life-changing. Like my whole arms and back. It's mostly food. I gotta have this lifestyle. I gotta try.'