Garth Brooks joined his friend Robin Roberts on Good Morning America last week for a chat about his upcoming Drive-In Concert, and ended up sharing some new music with the esteemed journalist."Do you want new music yourself from me?" the country star asked Roberts, to which she replied, "I always--any music from you, Garth, just makes my spirit soar."To her surprise, Brooks replied that he would send her something new that he's been working on, and she'll "decide what you want to do with it.""If