9. 'Diamonds From Sierra Leone'
Writing a hit song about conflict diamonds is no easy feat, but Kanye pulled it off on his 2005 song "Diamonds From Sierra Leone." It taught countless people that the diamonds we buy in America are often the product of unimaginable violence, and it introduced a new generation of fans to the musical stylings of Dame Shirley Bassey. The song failed to crack the Top 40 in 2005, but West has performed the song at most of his shows over the past eight years and it's become a beloved track.