What is it called when two or more people sing different lyrics at the same time? Like, the Savages refrain in Pocahontas, and I think El Tango De Roxanne is like that, frm Moulin Rouge. I'm not talking about a round, where it's the same song. It's like each person or group sings their own song, but to the same tune.
What are some other songs that do that? I really like the technique, or whatever you'd call it.