Watch it here: Pentatonix Performs the National Anthem Social media reactions to the group’s crunchy harmonies came flooding in, with one viewer saying: “I’ve never heard a rendition of The ...

Like so many famous songs of yore, "The Star-Spangled Banner" started as a poem, called “The Defence of Fort McHenry.” It was written by Francis Scott Key in 1814 during the War of 1812.