Wow. I am speechless. This is the most amazing 'Lover To Lover' live performance ever. Florence is so happy here, you can see it in her smile, in her eyes and hear in in her powerful voice. She looks like a bird flying in the air with wings out-spread. So natural, so heavenly. Magnificent and divine.
Except Janis never had a clear voice, falsetto, wasn't a soprano, didn't have areal vibrato and only growled in the lower register where as Florence rarely touches the lower notes. xD
I'm a very much fan of Florence Welch too, but you don't need to reduce Janis Joplin just to say that you consider Florence better than her. Both are very talented artists, Florence are more talented to us, but Janis are more talented for her fans.