You can find it on Youtube at:
Kina get you the moon
Strictly speaking, no, because copyright.
Practically yes, nobody cares.
On YT I would not do that, then you get NEN Strike
On twitch eig everything can run, in retrospect when the strean jmd as video anguckst manchr passages without sound, you should specify in the stream which song that is and with whom it is I believe then no problem