I'm confused. Should I up or down vote this?

Moving this video to sometimes's personal queue. It failed to receive enough votes to get sifted up to the front page within 2 days.

I don't think that's auto-tune. You can still hear Shania's voice in that. I think what you're hearing is a backup singer who's at just the right pitch to combine with Twain's voice to sound like it's auto-tuned. Having said that, though, I can't say for sure because I could only listen to it for so long before I had to stop the video.

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The duration of this video has been updated from unknown to 3:42 - length declared by oritteropo.

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Adding video to channels (Livemusic) - requested by ant.

It's not autotune on Shanias channel, i would dare to say zero correction (listen to the end of lines where her compulsory "yeahs" are, no autotune can follow those..) On the backup singer channel, could be or she is just one of those incredibly "flat" singers that have the ability to not use even a slightest vibrato (meaning, very very good backup singer, almost too good technique.. ) But it's totally flat, meaning, autotune can be used. But you or i can not hear the difference unless we hear that channel separated, in the mix not a chance in hell you can say without doubt for one way or the other..

Even i don't really like her or the music, she is quite good singer in the first place, doesn't actually need any correction but i'm 100% sure all of her albums since 2000 have been autotuned but then it's more detailed, programmed over time to sound natural perfection (each phrase is done seperately, there are deliberate out-off-tune bits etc. which happens on every record, yes, even those metal ones you listen cause of originality. Especially metal albums these days are the most heavily touched and processed after "Britney" department..)

On-the-fly auto tuning has serious drawbacks compared to off-line auto tuning. Basically, "live" autotunes are Kanye West type super duper obvious ones. In this clip, main vocals are definitely real.