Think about the sheer volume of material a rap artist creates over a career. All that writing, all those beats, all that work. Tens of thousands of words, thousands of bars, hundreds of songs. Even the greatest legends can't keep up quality control for that long.

Sometimes they make concessions for commercial reasons. Sometimes they hop on a trend that doesn't suit them. Or experiment with a weird new style that isn't quite ready yet. And sometimes they just mess up. Hey, nobody's perfect. Not even rap stars. 

Weird. Shocking. Disappointing. Here are 20 Horrible Songs Made By Great Rappers....

Written by Al Shipley (@AlShipley)

RELATED: The 21 Worst Lines by Great Rappers
RELATED: 10 Underrated Albums By Great Rappers
RELATED: 15 Horrible Songs on Classic Rap Albums
RELATED: Pigeons & Planes - Classic '80s Songs with Terrible Videos