Erin Oprea poses for a photo at the ACM Workout For A Cause: with News Photo - Getty Images

Fitness guru Erin Oprea joined with Kelsea Ballerini for a workout

Country Star Trainer Erin Oprea on How To Get Jacked Like Maren and Kacey

Erin Oprea: How I Became A Celebrity Fitness Trainer

3,252 Denise Gray Photos & High Res Pictures - Getty Images

8,616 Denise Rock Photos & High Res Pictures - Getty Images

Workout with Celebrity Trainer Erin Oprea This August

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

Academy Of Country Music Awards Entertainment and Celebrity Photos Gallery - Getty Images

Why Nick Jonas' Performance With Kelsea Ballerini Sent Him to Therapy – NBC Bay Area

Fitness guru Erin Oprea joined with Kelsea Ballerini for a workout

22,406 Rockin Stock Photos, High-Res Pictures, and Images - Getty Images

Fitness guru Erin Oprea joined with Kelsea Ballerini for a workout

Erin Oprea Wants You To Have Pretty Muscles

Academy Of Country Music Awards Entertainment and Celebrity Photos Gallery - Getty Images

3,390 Denise Grey Photos & High Res Pictures - Getty Images

One on One with Celebrity Fitness Trainer Erin Oprea

Erin Oprea - Dance off today at the beach with my son, I think I won😂!! Never a dull moment with our family!!

Tennessee Titans To Host Muscles & Mimosas Event With Celebrity Trainer Erin Oprea - The Sports Credential

Rose All Day 25 Legging – Erin Oprea Basics

Workout by Carrie Underwood's trainer