On this week's episode, Kathryn sits down with Casey Fleyshman, a fitness model, personal trainer and author of the book "The Glute Bible"

Casey started her fitness journey at the age of 3 when she was first introduced to ballet. After 17 years of spending anywhere from 8-19 hours in a ballet studio, she hung up her Pointe Shoes for good and decided to pursue other passions.

Casey decided to publish her first book, "The Glute Bible", a comprehensive guide to everything "booty". 

Listen to this week's episode to hear how Casey is helping millions of followers transform their glutes and better their health.