On paper, hip-hop and opera seem like completely different styles of music, but many producers have shown us otherwise. Using dramatic, often high-pitched vocal samples, they add a theatrical element to rap tracks. The vocals can come from samples of actual operas or, more commonly, presets on synths or keyboards, and they've been used by everyone from Three 6 Mafia to RiFF RAFF to Tech N9ne.

Here's a chronological list of 13 hip-hop tracks that repurpose opera into a backdrop for beats, rhymes and hooks. This is not a definitive "best of" list, and it's only a brief list of the of wide array of tracks that make use of similar samples.

Did we miss any of your favorites? Let us know in the comments section.