6. John Lennon - 'Working Class Hero'
John Lennon's 1970 LP John Lennon/Plastic Ono Band is arguably the greatest work of his solo career. The fourth song, "Working Class Hero," is a painfully personal look into the British class system. "I think it's for the people like me who are working class – whatever, upper or lower – who are supposed to be processed into the middle classes, through the machinery," Lennon told Rolling Stone in 1970. "It's my experience, and I hope it's just a warning to people. I'm saying it's a revolutionary song; not the song itself but that it's a song for the revolution."