By Pamela Tran, Alabama Public Radio
http://stream.publicbroadcasting.net/production/mp3/wual/local-wual-795380.mp3
Tuscaloosa, AL – You've probably sung it hundreds of times in your life, but how much do you really know about the song? In our continuing series "Wow! I Didn't Know That!" Pamela Tran shares the history of the Star Spangled Banner.