Watch Kelly Clarkson Cover “Shake It Off”

Get ready to freak out. Kelly Clarkson covered Taylor Swift's "Shake It Off" live last night.

Yes, Kelly Clarkson covered Taylor Swift. We'll give you a moment to absorb this information.

Prior to performing her version, Clarkson told the crowd in Buffalo, New York, “This is a church song. This is a soulful song. This is one of my favorite songs out right now.” The first American Idol has been killing the covers lately, singing her take on Sam Smith's "Stay With Me" at a concert in Charlotte, NC last week.

For her part, T-Swift shared it with her fans in an enthusiastic tweet:

Watch the video and you'll see why Clarkson has three Grammys on her shelf.