Celebrating one of the greatest musical events in television history, NBC will honor a true legend when it airs "Elvis All-Star Tribute," a look back at the network's iconic 1968 special that put Elvis Presley back on the map. From Ken Ehrlich, veteran executive producer of the Grammy Awards and a multi-Emmy Award nominee, the two-hour special will feature an all-star group of music superstars who will pay tribute to Elvis, recreating the spectacle - even the staging - of that legendary night.