Slide #2
With titles like "Dopeman", "8 Ball", "Fuck tha Police", and "Gangsta Gangsta", N.W.A.'s first album Straight Outta Compton released in 1988 was one of the first to bear the Parental Advisory label. In spite of its not so radio-friendly nature, it would go double platinum.
[Straight Outta Compton album cover via]