I mean, it’s absolutely not, in the classical sense, “live.”
She’s done what all the VMA performers did and filmed the performance several times and edited together, so I presume the “as live” vocal was recorded at the start of the process.
It feels like its moment has passed to be honest.
WHAT chorus?
Definitely.to me WHOA WHOA WHOA WHOA- is the chorus and s-S-S-Say something is the post-chorus.
Also I do hope she doesn't rely on this version in live concerts too - in the way she very rarely seems to perform the uptempo version of I Believe In You. The original is the best.