Check out the new version! http://www.youtube.com/watch?v=hEe_IpkbAOU in which Floor & Tarja sing some parts separately. My other duets:
Nemo: http://www.youtube.com/watch?v=TUBva9_MlRI
Ever Dream: http://www.youtube.com/watch?v=hrBZmcgzFPM

Fan-made video of Nightwish playing Ghost Love Score with two vocals, Tarja Turunen's and Floor Jansen's. I just put two audio tracks on top of each other. I can't believe how well it came out without additional editing. The left video is from End of an Era concert in Helsinki, the right video is from Buenos Aires concert in 2012.

Please no discussion who is better, just enjoy the vocals of these two great singers.

All rights to the audio/video belong to Nightwish and Nuclear Blast.