Adele wasn't about to let history repeat itself.
At the 2016 Grammys, she suffered technical difficulties while singing "All I Ask." At the time, Adele's microphone fell onto the piano keys. Producers switched to a backup sound system, which caused a momentary audio drop. "We had the most complicated show on television," Academy President Neil Portnow said last year. "Period. End of story." Portnow praised the singer for being a "professional" and said Adele did a "great job" in spite of the mishap. "We certainly don't like when those things happen," he said, "but those things happen sometimes."
Try explaining that to Adele, who said she "cried pretty much all day" after the televised disaster.