Erin Oprea is a NESTA- and AFAA-certified personal trainer as well as a former Marine who has served two tours of duty in Iraq. She has been Carrie Underwood's personal trainer since early 2007 and has trained Maren Morris, Kacey Musgraves, Kelsea Ballerini and more, earning her the title of "Trainer to the Stars." She currently lives in Nashville with her husband and two boys.
