Was Carrie Underwood At Watershed?

During Watershed Brad Paisley performed his hit song "Remind Me", which is a duet with Carrie Underwood.

I've had several people tell me that it was really Carrie up on the stage with Brad and not a hologram. They are all convinced it was really her!

I wasn't there, so I can't say for sure if it was her or the hologram.

Do you think Carrie Underwood was really at watershed?