Judas is her worst live performed song due to a combo of the production+the all over the place choreo(which she has toned down a lot and has led to better singing).
"Judas" just isn't a "live"-type song, the studio version has so much vocal manipulation and she's singing in that weird accent. Even the vocals aired on TV aren't all that good.
But the heavy breathing... it sounds like she's masturbating or something.
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I see Vin has arrived. Always trying to take Gaga out the game. Why can't you deal with the fact Ke$ha can't do it?