Denyce Graves sings at the Hylton Performing Arts Center (Photo by Marlon Correa/The Washington Post)

The evening on September 8 will feature opera singer Denyce Graves, country singer Emmylou Harris, jazz artist Wynton Marsalis and the National Symphony Orchestra. John Mauceri will conduct the NSO.

Emmylou Harris performs at the Newport Folk Festival (AP Photo/Joe Giblin)

“9/11: 10 Years Later--An Evening of Remembrance and Reflection” will be hosted by Christiane Amanpour. The 7:30 performance will be invitation-only.