Top 20 Hip-Hop Albums of All Time: No. 7

'It Takes a Nation of Millions to Hold Us Back,' by Public Enemy

The revolution will not be televised. No need, as it was already placed on wax. Chuck D and crew delivered their fierce messages of black-on-black crime, police brutality -- way before Rodney King and Abner Louima -- and deliverance by way of self-empowerment on the 1988 album that launched a modern civil-rights movement and paved the way for burgeoning revolutionaries everywhere.