The 28-year-old British singer announced the news the day of the show to fans in an Instagram video.
"Hello everyone... Specifically everyone in Phoenix and Arizona. I can't do my show tonight, my second show here. I'm really, really sorry.
"I've had a cold for a couple days, and I've been pushing through it and I did my show last night and I loved it, but I pushed too hard. And my cold has gotten the better of me," Adele said.
"I'm so sorry to let you down, I know lots of people would be flying in, from all over, it's the last thing I want to do but I have to look after myself because I've got so many more shows to do.
"I will reschedule this show I promise you and I will come back and I will smash it for you. I'm really, really sorry, have a wonderful evening without me," she said before blowing a kiss to fans.
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