Celebrity Trainer Erin Oprea poses for a photo at the ACM Workout

Celebrity Trainer Erin Oprea poses for a photo at the ACM Workout For A Cause: with Erin Oprea, on April 14, 2018 at Stoney's Rockin' Country in Las Vegas, Nevada. Get premium, high resolution news photos at Getty Images

Country music recoding artist Kelsea Ballerini poses for a photo at News Photo - Getty Images

Country music recoding artist Kelsea Ballerini poses for a photo at News Photo - Getty Images

Celebrity Trainer Erin Oprea poses for a photo at the ACM Workout For News Photo - Getty Images

Celebrity Trainer Erin Oprea poses for a photo at the ACM Workout For News Photo - Getty Images

How Fitness Trainer Erin Oprea Changed Her Body Composition At 44

Grab a set or my ERIN OPREA BASICS Sliders and let's PLAY!! Simple yet super effective!! It's going to burn so good! Let's make th

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Trainer Erin Oprea on the 'Huge Honor' of Leading the First All-Female Marine Corps Platoon

SmileDirectClub: Erin Oprea and Kelsea Ballerini's smile-powered workout