However, the unexpected meet and greet turned into a surprise proposal, as Wade seized the opportunity to get down on one knee and pop the question to his boyfriend.
She's shot T-shirts into the audience, cracked dirty jokes and tripped up stairs, but there's one thing Adele hadn't yet done during the Australian leg of her world tour - dance like Beyonce.
Adele then caught a glimpse of herself in one of the show's huge screens, exclaiming: "Oh s**t, what's going on with me hair?" Adele hadn't gotten around to writing letters that she usually hides underneath seats at her show, so to make up for it, she invited Chris and his partner, Wade, on stage.
A cheer went up with Chris said "yes", despite looking a little shell-shocked. "So that was unplanned, I had no idea there, Chris".
"If you don't like dancing, don't come to a f--ing music show". "Thank you for doing that, that was emotional".
Saudi Arabia Invites Muslims from Iran to Holy Pilgrimage in Mecca
But after talks between the two sides, the Iranians will join this year's ritual which takes place at the beginning of September. Iran says it lost 464 citizens, and compensation for the families was a key issue in restoring the annual pilgrimage.
"If I see one more person being told to sit down, I swear to god", she said.
"Give me a beat", she told her band before bending down to a fan and whipping her hair.
Also in 2016, at a show in Belfast, Adele coaxed a female concertgoer to repeat her recent proposal to her boyfriend, who had initially given a vague answer.
Sunday night was made more memorable by news that Adele cracked the attendance record for Etihad by bringing in 77,300 punters, 2000 more than she did on the Saturday night performance.