The Code of Support Foundation (COSF) is sponsoring a spectacular lineup of musical performers in a special Presidents' Day weekend free concert saluting veterans and the U.S. Chamber of Commerce Foundation's "Hiring Our Heroes" program at Lisner Auditorium, George Washington University, DC on Sunday, February 17th at 3pm. Performers include the renowned 70-voice West Point Glee Club, along with the Washington, DC-based West Point Alumni Glee Club, the hot military quartet and Sony Music recording artists 4TROOPS, CAMMO recording artists Homefire Military Spouses Choir, multi-platinum selling country music star Mark Wills, and rising star David Kroll, who recently released a new single, "Little Soldiers" saluting family members who remain at home while Mom or Dad is deployed. Tickets for the concert are general admission and free of charge. Tickets may be obtained online at www.lisner.org or by phone at 202-994-6851 or through the box office at 202-994-9599. Box office hours are 10 am until 6 pm Monday through Friday.