Both performances are just flawless. Her vocals are spot-on. The live instrumentals are to die for--from the strings in the chorus of "LG" to the amazing reproduction of all the "Just Dance" noises. And, finally, her dancing is awesome; she has variety. The choreography isn't similar at all. I think that, honestly, these are her best performances yet. Just when I thought she was resorting to pure theatrics she comes back hard with pure choreography.