Fitness model, trainer, and blogger, she runs KatyHearnFit, which offers workout and fitness plans online. Her Instagram account has over 1.3 million subscribers. She rose to fame in May 2014. In an introductory video she made in 2013, she said that she got started on the fitness lifestyle because she saw photos of herself at her 21st birthday and wasn't happy with what she had done with her body in college. She was inspired by other bikini competitors to become a fitness model.