I was listening to 1000 Forms of Fear by Sia ( Sia – 1000 Forms Of Fear), because i like the song Chandelier. It is also the first song on the album. But that album version does not sound like the version on official youtube video and it does not sound like Sia. Is it really her? (For me it sounds more like Rihanna than Sia) Or does the album have another version of this song?