Photo: Tyler Golden/NBC If you’re not feeling well, it’s okay to just walk away . But unfortunately for some unlucky fans, it means having to figure out something else to do in Vegas this weekend. Kelly Clarkson canceled her opening concert dates for her Las Vegas residency this weekend to prevent any further damage to her voice after some intense rehearsals. “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.