"I see no changes, wake up in the morning and I ask myself, is life worth living, should I blast myself?," starts one of the most famous rap songs of all-time. Tupac's "Changes" is a flash of brilliance in a time when most rap songs were focused on money, cars and women. The song is a real message of change, and Tupac wasn't afraid to address touchy subjects such as drug use and police brutality. The song was released post-humus which made it all the more potent, as Tupac's messages about violence were backed up even further by the fact that he was killed in a drive-by shooting.