This isn’t necessarily a “collaboration” but, it did happen and it was pretty magical. A couple years ago, The Smashing Pumpkins did a few shows to celebrate them being a band for 30 years. They invited a few people to come join them on stage, Chino Moreno of Deftones fame being one of them. They performed two classic Pumpkins songs that evening, “Bodies” from Mellon Collie and The Infinite Sadness and “Snail” from “Gish.” It’s almost like Chino was meant to sing “Bodies” and “Snail”when you listen to him sing them. I’d love to hear the soundboard audio of these songs but, these versions are pretty good.
The Smashing Pumpkins with Chino Moreno: