Kelly Clarkson kicked off her Las Vegas residency's first show with an apology to fans after postponing opening night last ...

American Idol' winner returned to the stage one week after illness forced last-minute cancellation of her Las Vegas residency ...

After some vocal hiccups, the pop-country powerhouse launched her 'Studio Sessions' residency at Caesars Palace.

Kelly Clarkson is back in Vegas, bringing a relaxed vibe to her new residency. Here are all the hit songs she performed.