What goes on in Vegas most certainly will NOT stay in Vegas here!
Watch it go down (below)!!!
Uh ohhhhs, someone is about to get a song written about them!
We're not sure who was in the line of fire for Taylor Swift's stink eye, but someone is getting a serious stare down right there!
While performing All Too Well at the Grammys, Swifty served up some attitude like only a girl made of sugar and spice and everything nice can do!
Taylor was totes thinking _______________ about ______________ while dishing out this glare!
[Image via Getty Images.]