During the show at ANZ Stadium here in Australia, the 28-year-old singer asked if anyone would be attending Bieber's concert being held at the same spot next week when crowd started booing, reported Cosmopolitan magazine.
Adele's own concert, while an aural treat for those in attendance, had a hiccough of its own when one fan suffered a heart attack mid-show.
A 47 year-old woman was taken to hospital in a serious condition during her performance on 10 March.
The woman was taken ill at Adele's gig at ANZ Stadium in Sydney last week and when Adele returned to the stage the following evening, she explained that the track Take It All was for the sick fan.
Eyewitness Meg Rylance told the Mail Online that she was sitting in the next row from the woman who collapsed. Sorry, someone got hurt.
She can also be heard asking if the person was okay.
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"I wish you a speedy recovery". Pretend I didn't say anything.
"I was crying, and she said "don't cry darling" and I kissed her hand".
"She actually seemed really tearful", the concert-goer adds.
Adele has released a sneak-peek of what Kiwi fans can expect from her New Zealand shows.
Initially, it was thought the woman had suffered some kind of spinal injury, because paramedics had brought a stretcher into the arena with them.