Originally appeared on E! Online The bass at the 2005 Grammys kept runnin', runnin'. After all, Fergie and the Black Eyed Peas kicked off music's biggest night 20 years ...

Iconic songs by Sam Cooke, Kim Weston, Public Enemy, Nina Simone, Marvin Gaye, Lauryn Hill, Kendrick Lamar and more depict the fight for civil rights.