A medley involving "7 Rings" seemed to be agreed upon until producers wanted to choose the second song, according to Variety.
The 26-year-old singer has chose to pull out of the awards show after she had a disagreement with the producers, a source tells Variety.
Grande's decision is especially noteworthy given how the Grammys used her image on a series of promotional billboards across American cities. To top it all off, Grande has chosen not to attend the gala as a front-row guest, notwithstanding her omission as a performer.
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The insider claims that producers suggested a medley performance instead, which Ariana is reported to have been on board with.
ET Canada have reached out to Grande's rep and a Grammys spokesperson for comment.
With this development, the Grammys find themselves not only without a twice-nominated artist whom they have been using to promote the show, but also without one of the most vital artists of the moment.
The 61st Annual Grammy Award ceremony is set to air on February 10.
During an interview with Billboard past year, Ariana made it very clear that she is not a pushover in the industry.