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Trent Reznor and his band, Nine Inch Nails, were given the honor of closing out the 56th Annual GRAMMY Awards Sunday night. But the telecast went long – very long – and NIN's epic collaboration with Queens of the Stone Age, Dave Grohl and Fleetwood Mac's Lindsey Buckingham was cut off mid-performance. 

Reznor isn't happy about it. 

"Music's biggest night...to be disrespected," he tweeted after the show. "A heartfelt F-CK YOU GUYS."

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Reznor has never been accused of being short on words, and he wasn't the only performer to feel slighted. Nine Inch Nails bandmate Alessandro Cortini tweeted, "Hey @TheGRAMMYs: Way to say f-ck you to great music by putting commercials over @qotsa...unbelievable."

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After all the awards had been given out, the closing performance kicked off with Nine Inch Nails and Lindsey Buckingham performing "Copy of A" from NIN's most recent album, Hesitation Marks. Queens of the Stone Age then came on to play "My God Is The Sun" with Dave Grohl pounding the drums. But the rocking super-collab was cut short when CBS began rolling end-of-show credits.

Note to GRAMMYs: Next time you're gonna cut off a performer, pick a less-outspoken musician.