Kelly Clarkson cried after cancelling the opening night of her Las Vegas residency

She told the crowd: "It took me a minute. I'm so sorry.

"I know some of y'all had tickets for last weekend's shows. I'm so sorry. We can't help our bodies sometimes. You know, we get sick, and that happens.

"But thank y'all for showing up. We are so excited. This is my favourite residency - my favourite show I've ever put together, because I love being in the studio."

Kelly subsequently revealed that she was reduced to tears by the cancellation.

She shared: "I'm celebrating because I had to cancel last weekend. I cried. I was so sick. It sucked. I'm so happy to be here!"

Kelly actually announced the postponement of the opening night of her residency on social media.

The pop star was supposed to begin her residency at Caesars Palace on July 4, but Kelly was forced to postpone her plans amid concerns about her voice.

The singer - who rose to fame by winning the first season of American Idol back in 2002 - wrote on Instagram at the time: "We have been working 24/7 to make Studio Sessions the most intimate and extraordinary experience with and for my incredible fans. I am beyond grateful that you always show up for me and I am devastated to have to postpone tonight and tomorrow's opening at Caesars.

"The prep and rehearsals have taken a toll on my voice. I want the shows to be perfect for y'all and I need to protect myself from doing serious damage so I am taking this weekend and next week to rest up so that we can deliver what you all deserve.

"The show is truly incredible. The musicians and singers are outstanding, and I want us all to start out strong.

"I can't wait to be back next weekend and show y'all what we've been working on. (sic)"