>> ♪ this land is your land ♪ this land is my land >> announcer: coming up next, "woody guthrie at 100" live at the kennedy center in washington, d.c., celebrating the life and work of america's greatest folk singer -- a historic concert featuring performances by john mellencamp, jackson browne, donovan, tom morello, ani difranco, sweet honey in the rock, and many more. >> ♪ this land is my land ♪ from california... >> explore new worlds and new ideas through programs like this, made available for everyone through contributions to your pbs station from viewers like you. thank you.