This year's Grammy Awards were closed by Nine Inch Nails, Queens of the Stone Age, Dave Grohl and Fleetwood Mac's  Lindsey Buckingham., but the all-star gig was cut short on television when closing credits and sponsors were shown instead of the end of the performance. You can watch rehearsal video of the entire performance above, but in a new interview, Nine Inch Nails frontman Trent Reznor lashes out at Grammy organizers, vowing never to return and calling it "an utter waste of time."

In a conversation with 3 News New Zealand, Reznor unloaded on show organizers: "What we weren't expecting was that level of insult. In fact we walked off stage and I thought, 'Hey, that actually went pretty well', and I look at my collaborator Rob Sheridan, who I run into, and he's like, 'Oh my god man, you won't believe what they just did,' and... 'What?' 'They cut this thing off in the middle and put a Delta commercial on.' 'What?' We had no idea."

Reznor continues, "So, lesson learned ... If we hadn't have done it, I'd be thinking, 'Well, what would have happened it we would have done it?' You know. So I don't regret that we did it, but would I ever -- in any situation -- ever consider possibly patronizing that event in any form? Absolutely not."

He also talked about the progress of the reissue of NIN's 1999 album 'The Fragile.' "We've done a lot of the work for that," Reznor reveals. "Really what it's come down to is with all the other stuff going on, 'The Fragile' thing in particular, I want to make sure I get it right."

"You know, we've mixed everything in surround, it sounds amazing, we have a great package ready to go," Reznor continues.." I just stumbled across 40-or-so demos that are from that era that didn't turn into songs, that range from sound effects to full-fledged pieces of music, and I kind of feel like - something should happen with that."

Nine Inch Nails will be touring the world in 2014. They travel to Japan later this month, and also have tours scheduled for Australia/New Zealand, Latin America and Europe. For all the dates, go here.