omg!!! So interesting to hear this. It's nice but lacks the magic that Carly's version has (this is one of my favs from the album). It makes it so clear how brilliant Carly's vocals are on EMOTION.
IMO, Sia's bridge is better and the rest of the song was done better by Carly, the song just suits her very well overall. I always imagined Sia singing the harmony/raise in pitch during the last chorus though