If you've seen a Brad Paisley show, you've probably seen Carrie Underwood join him on stage as a hologram to sing "Remind Me".  Jason Aldean also performed the same trick in Duluth when it appeared Kelly Clarkson was here singing "Don't You Want To Stay".  They can look pretty real, and I know some people who never realized it was just a hologram. 

The late Michael Jackson was the latest performer to take the stage in the form of a hologram, but this time he was the star of what I thought was quite a production.

What did you think of seeing a Michael Jackson performance at the Billboard Music Awards?