Britney's 2007 one was way worse! It was then when people woke up and realised she can't perform as well as she used to - a stigma still attached to her today. And the media mudslinging that came after it was probably 10 times worse (I was yet to be born for another year in 1991 so I obviously don't know about that) - no wonder she was so crazy!
I ACTUALLY love it.. it has energy! The vocals arent as atrocious as what we nowdays have to put up with with the fake fluff in the industry.. She slays with the dancing.. The only reason she started flopping is because her hits werent as catchy as her first two albums. Even her 2nd album wasnt as complete as her first.
With the exception of the outfit and the timing of removing the mustache, its not even a bad performance. Understandable though, since standards for performers were far higher than. We tolerate so much mediocrity now. Hell not even that.