Watch a preview of the 2016 National Memorial Day Concert featuring General Colin L. Powell, Renée Fleming, The Beach Boys, Katharine McPhee, Trace Adkins, S. Epatha Merkerson, Esai Morales, Alfie Boe, Trent Harmon, Maestro Jack Everly and co-hosted for the eleventh year by Joe Mantegna and Gary Sinise.