Kelly Clarkson: iHeartRadio Music Festival Performer!

Kelly Clarkson wows the crowd at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on Friday (September 23) in Las Vegas, Nevada.

The 29-year-old singer took the stage at the concert barefoot!

PHOTOS: Check out the latest pics of Kelly Clarkson

If you can’t make it to Vegas to see the show in person, Y100.com will be live streaming the entire concert!

In case you missed it, check out a sneak peek of Kelly‘s new music video of “Mr. Know it All,” which will be premiering this Monday.

10+ pictures inside of Kelly Clarkson performing at the iHeartRadio Music Festival in Las Vegas…