Kelly Clarkson's highly anticipated Las Vegas residency opening was postponed hours before showtime because the singer needs vocal rest after demanding preparations.

There has to be some repercussion. Something for the people that spent thousands to get there,” one upset fan wrote via social media.

Kelly Clarkson has delayed the start of her Las Vegas residency, just a few hours before she was set to take the stage at Caesars Palace, due to vocal issues. The singer was scheduled to perform at the Colosseum at Caesars Palace on July 4,