Watch this performance in full. During the entire 9 minutes, she never sung in the mic using her left hand.
It may seem small, but if anything, it shows her control and precision. Other artists just get on stage and sing in whatever hand the mic lands in. She has literally mastered the art of performing. You can learn new things everyday.
I think the ST cover made sense for what the album was and how she wanted to represent herself
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Nothing like that boring 4 cover though. Very unnecessary. The deluxe was just awful. I hope she never works with the 4 photographer and his pasty skin looking editing skills again.