Katharine sings "America the Beautiful" and "Somewhere" at Memorial Day Concert

Katharine McPhee contributed to yesterday's 20th Annual National Memorial Day Concert, which was broadcast live on PBS from the steps of the U.S. Capitol Building in Washington, D.C. The concert, which also featured performances by Trace Adkins and Denyce Graves, was hosted by actors Gary Sinise of CSI: NY and Joe Mantegna of Criminal Minds, both of which air on CBS.

Watch Katharine perform "America the Beautiful" with pianist Lang Lang below:



Katharine also sang "Somewhere" following an emotional vignette by Dianne Wiest and Katie Holmes in which the story of a mother and daughter caring for their son/brother named Jose was told after the Staff Sargent was wounded in Iraq. Watch her perform "Somewhere" below:



This is not Katharine's first foray into lending her talents to national holiday concerts, as she took part in 2008's Macy's Fourth of July Fireworks Spectacular, which aired on NBC.