California, July 5 -- Singer Kelly Clarkson postponed the opening night of her Las Vegas residency, shortly before the event was meant to kick off on Friday night, reported The Hollywood Reporter.

Taking to her Instagram handle, the singer-songwriter shared the news of her postponement, noting that the performance had been pushed back due to vocal issues.

"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," wrote Clarkson on her Instagram post.

The American Idol winner fu...