The U.S. Air Force Band’s Celtic Aire ensemble performs during a Memorial Day weekend concert at the National Harbor in Fort Washington, Md., May 27, 2017. The band’s concert kicked off their Summer Concert Series, which features performances every Saturday at the National Harbor. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

Tech. Sgt. Adam Tianello, U.S. Air Force Band’s Celtic Aire ensemble bagpiper, plays a bagpipe during a Memorial Day weekend concert at the National Harbor in Fort Washington, Md., May 27, 2017. Audience members had the opportunity to sing along to traditional and folk music, while watching the Air Force’s only official bagpiper perform. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

Audience members watch the U.S. Air Force Band’s Celtic Aire ensemble perform during a Memorial Day weekend concert at the National Harbor in Fort Washington, Md., May 27, 2017. Celtic Aire’s mission is to honor those who served and inspire patriotism. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

Audience members applaud during a U.S. Air Force Band’s Celtic Aire ensemble Memorial Day weekend concert at the National Harbor in Fort Washington, Md., May 27, 2017. The audience had the opportunity to sing along and participate in a concert featuring Celtic, bluegrass and patriotic music. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

A U.S. Air Force Band’s Celtic Aire ensemble member plays the flute during a Memorial Day weekend show at the National Harbor in Fort Washington, Md., May 27, 2017. Celtic Aire is a Celtic and folk ensemble formed in 2007. The group is comprised of five musicians from the U.S. Air Force Band’s Singing Sergeants. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

The U.S. Air Force Honor Guard presents the colors during the U.S. Air Force Band’s Celtic Aire ensemble Memorial Day concert at the National Harbor in Fort Washington, Md., May 27, 2017. Memorial Day serves as an opportunity to pause and remember the sacrifices of more than one million Soldiers, Sailors, Airmen, Marines and Coast Guardsmen who gave their lives to secure America’s freedoms. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

Master Sgt. Joseph Haughton, U.S. Air Force Band’s Celtic Aire ensemble vocalist, plays a guitar during a Memorial Day weekend concert at the National Harbor in Fort Washington, Md., May 27, 2017. This performance kicked off their Summer Concert Series that includes free shows open to the public every Saturday at the National Harbor where people can enjoy traditional and folk music honoring service members. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)

Tech. Sgt. Adam Tianello, U.S. Air Force Band’s Celtic Aire ensemble bagpiper, plays a bagpipe during a Memorial Day weekend concert at the National Harbor in Fort Washington, Md., May 27, 2017. Audience members had the opportunity to sing along to traditional and folk music, while watching the Air Force’s only official bagpiper perform. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)