So back to that little spat, which coincidentally began 20 years ago when they both released their respective hit albums The Downward Spiral and Superunknown on the same day. (Check out our list of 13 Things You Didn't Know About The Downward Spiral.)
"We had a chip on our shoulder about Soundgarden because their record [Superunknown] came out the same day Downward Spiral came out, and they beat us to No. 1 on Billboard," Trent Reznor said in 2009. "That became a kind of professional showdown. And we did show them."
Reznor couldn't let it go because that tiff went on for years. The feud escalated based on the fact that Chris Cornell worked with commercial producers like Timbaland, which Reznor saw as selling out. The NIN frontman continued on with his battle against Cornell by sending him a nasty tweet, and even inspired the release of a mock album.
But all of that has now been swept under the rug. Right, guys? This tension should make for an interesting tour.