I've seen the same "arguments" for defending this piece of crap of a remix 1000 times over again yet the very most important thing is just ignored 1000 times over again.
Michael Jackson is dead. As the Estate and Sony and even producers made clear, there aren't alot of songs left that are either ready for release and/or finished. Now then, Slave To The Rhythm was one of the few songs left that was fully "finished" in terms of vocals and, even though the 2010 remix is probably very different, sounds good enough to be released in the version we currently have even if it needs some final tweaks.
Where in your logic do you think it's a good idea to feature a guest artist on this track to replace Michael Jackson's already great vocals which, as I mention again before it gets ignored AGAIN, there aren't alot of anymore since he is not here anymore to bless us with new music. So now that that's out of the way, I'll go on (again) about the choice of guest "artist" to be featured in this song/a future song in the form of a duet. No way in hell would Bieber be a good choice. Just STOP defending him because he, even though he might have done SOME good things, is NOT a good artist (only for little girls), doesn't have a good voice (seriously people), lacks talent (also very serious) that real talented artists have and doesn't respect the success and fame he has nor does he respect his idol if he thinks this would be a good idea. Defending Bieber about this crap of a remix is just about the most stupid thing you can do.
Justin Bieber is a product of the mainstream crap music of this generation. Just as much as dubstep gets popular as a music genre, it's still a big pile of crap noise which doesn't come even close to represent what music really stands for. Bieber is a good example of that. And another few examples are Nicki Minaj, Lil Wayne and, dare I go so far, Soulja Boy. They are all essentially the same type of artist who get to cash in on stupid fans who buy this crap due to the bar, the same MJ once set for music, being lowered in the music business. Talent is extremely hard to find these days and just be glad there are still real artists out there who still try and sell a crap amount of copies due to them not being 'popular'.
Back in the old days when I and most of us weren't even here, we had real artists like Otis Redding, Sam Cooke, Elvis Presley etc. I could go on about that. Just take a moment of your time and compare the music from that generation to this generation. Every idiot with an ego big enough takes a mic and tries to sing these days. Of course, this wouldn't be able without a good friend named 'autotune' and other computer effecs. Pfff, even I could do the same. Start a band, grab a mic and autotune the hell out of myself. Just to cash in. Wow, that must feel great to do. Luckily I am a honest guy and know I don't have the talent it takes to do something like that. I respect music just like MJ did. I learned from the best there was and ever will be and I can't say the same for Bieber.
If he's really a 'grown up man' then he should step up and show some responsibility and respect.
All in all, if you really look at this remix and honestly reflect on yourself you should see the light. A great and classic Michael Jackson song has been ruined for the future in terms of surprise and possibly sales/charting. Yet, as disgusting this is, I (and many others) don't really care about the charting etc, as it's better to keep MJ's artistic integrity 'alive' instead of quickly cashing in with a horrible remix.