Morgan Wallen is looking back. ET's Cassie DiLaura traveled to the 29-year-old singer's hometown of Corryton, Tennessee, to accompany him on a visit to his former high school, and things quickly got emotional when Wallen stepped out onto his old baseball field.«I spent a lot of time on this field,» Wallen tells ET, adding that «this place right here played a huge part in making me who I am.»The visit to the field was Wallen's first time back in a long time, and he tearfully admits that he was «pretty emotional» about his return.«It's important to me. I never thought that I would be able to do this.