Blake Shelton, Keith Urban, Pistol Annies, Dierks Bentley and Carrie Underwood joined other stars to honor King of Rock 'n' Roll, Elvis Presley on the NBC for the 'Comeback Special.' One of the most memorable performances of the night was when Carrie Underwood and gospel singer Yolanda Adams gave the powerful performance of "You'll Never Walk Alone." WOW!!