What about singing patriotic songs? The We Sing series has a nice collection of patriotic songs ... and after the events of 9/11, patriotism is really "cool" with kids.
God Bless America, This Land is Your Land, and We Love the USA are some of the catchy songs on the "We Sing America" album. It also has "regional" songs like "Blow the Man Down," "Eerie Canal," "Cockles and Mussels" etc.
Since 5th grade studies American history - why not teach them some good old fashioned folksongs?