Kayla Slone is a Walmart cashier from West Virginia who recently became a Facebook star after a customer took video of her singing behind the register.  She got the attention of Anderson Cooper and appeared on his show and got a phone call from a suprise guest:  Dierks Bentley.

Dierks said he was a fan and invited her out to the ACM's in Las Vegas!  Check out the video.

And here's where it all started: