This Land Is Your Land
Its lyrics were written by American folk singer Woody Guthrie in 1940 , based on an existing melody , a Carter Family tune called "When the World's on Fire" , in critical response to Irving Berlin's "God Bless America . " When Guthrie was tired of hearing Kate Smith sing "God Bless America" on the radio in the late 1930s , he sarcastically called his song "God Blessed America for Me" before renaming it "This Land Is Your Land . " 
<triplet> God Bless America <subj> Irving Berlin <obj> composer