It was supposed to be her triumphant return to the Grammys after a four-year career break.
But Adele’s eagerly anticipated big moment was marred by sound issues, widely thought to be caused by Justin Bieber’s sound check.
And the sound issues did not stop with Adele – with Bieber’s subsequent set also beset with problems.
The technical glitches came on a night plagued with disappointment and drama – Rihanna cancelled her performance on doctor’s orders just minutes before the show began, while Lauryn Hill had bailed on a planned duet with The Weeknd earlier in the day.
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What happened? Adele’s highly-anticipated performance at Grammy Awards marred by sound issues
But it was Adele’s disappointing performance that really riled viewers, many of whom had tuned in specifically to watch her much-trailed comeback
The singer’s powerful voice cut out shortly after she launched into singing her hit All I Ask at the event in Los Angeles.
As fans raced to adjust the volume on their TV sets, Adele could be seen singing, but only the misplaced sound of a guitar was heard – sparking wide speculation that it was Bieber warming up backstage.
Even after Adele’s voice resumed, the volume wavered, before it eventually stabilized.
A CBS spokesperson confirmed there was a five-to-eight second technical issue with the broadcast, adding without elaboration that it was outside the network’s control.
What’s going on? Adele could be seen briefly reacting to the sound issues, her eyes opening wide
The show must go on: Ever the professional, she kept singing – although fans detected that the usually pitch perfect star seemed slightly off her game
Adele could be seen briefly reacting to the sound issues, her eyes opening wide.
But ever the professional, she kept singing – although fans detected that the usually pitch perfect star seemed slightly off her game.
Adele made no further acknowledgment of the mishap until she returned to the audience – at which point the distraught looking star was seen animatedly discussing the errors with her long-term partner Simon Konecki.
Even as she did so her followers were taking to Twitter in their hundreds to rant about the mistake.
That didn’t go well! An annoyed looking Adele returned to the audience after her set, where she was seen discussing the sound issues with her long-term partner Simon Konecki
Not happy: Simon could be seen trying to convince Adele that her big moment had not been a disaster
Onto Twitter: Adele went straight onto her phone to check out the reaction
That’s so annoying! The couple were seen discussing what went wrong
But as they published their tweets, Bieber was suffering sound issues of his own.
As he finished his first acoustic song Love Yourself, he jumped off the stage and launched into Where Are You Now.
But the sound appeared to briefly drop out, before his voice was heard. Throughout his set fans detected various minor sound glitches.
Furious: Adele’s fans ranted on Twitter about the technical glitches affecting their enjoyment of Adele
The technical errors infuriated many fans – with Bieber taking the brunt of the blame.
Singer Nichole Nordeman wrote: ‘Adele’s pitch is consistently & historically flawless. FLAWLESS. That was 100% an audio issue & she was fighting hard from go. Hush, ya’ll.’
Mia Farrow commented: ‘I can’t say a negative thing about Adele’s performance she’s a goddess it was the f:#£ng piano.’
Representatives for Adele and the Recording Academy did not immediately respond to requests for comment.
Sound issues: Bieber’s performance also had technical glitches
Meanwhile Rihanna was forced to pull out of her planned performance at the 11th hour due to a throat infection, after her doctors ordered her to rest her voice for 48 hours or risk the hemorrhaging of her vocal cords.
The 27-year-old, an eight-time Grammy winner, had been slated to perform her song Kiss It Better, from her new album, Anti, which was released in January after the cutoff period for this year’s Grammy eligibility.
But, after a medical examination following Monday’s rehearsal, doctors decided she should drop out of the show because she was ‘at risk of hemorrhaging her vocal chords,’ her publicist said in the statement read by Grammy organizers to reporters backstage.
‘The antibiotics she had been on for three days did not kill the infection adequately. Therefore she cannot perform safely,’ the statement said.
Meanwhile Lauryn Hill also cancelled her expected performance with The Weeknd, with her reps accusing the Grammy organisers of jumping the gun.
‘The Grammy’s announced a performance by Ms. Lauryn Hill prematurely and without approval. Ms Hill had concerts all weekend, leaving no time to prepare, and was uncertain she would even be able to make it to LA in time to rehearse for the event,’ her rep said in a statement to Billboard.
‘Any performance that could have happened was never confirmed, and should not have been advertised as such. Ms. Hill was invited to do a collaboration with an artist she appreciates. The performance was intended to be a surprise and unfortunately due to its last minute nature, was unable to come to fruition.’