R.Kelly's "Ignition (Remix)" is the only pop song I'm aware of that tells you not just which song you're listening to but which version of that song. The B-52's don't sing "This is the single edit of 'Love Shack.'" Paul McCartney doesn't sing "This is the live version of 'Maybe I'm Amazed.'"
But at the top of every chorus, R. clues you in: "This is the remix to 'Ignition.'" It makes me wonder, what does he sing in the non-remixed version? I've never heard that version, but according to the lyrics I've found, the only reference to the title is a line that goes "Let me stick my key in your ignition, babe."
I don't pretend to understand contemporary hip-hop, but it seems to me that if your remix of a song is so thorough that you've even got entirely new lyrics, you don't have a remix on your hands - you've got a whole nother song. R. more or less acknowledges the uniqueness of the situation when he opens up the remix by saying, "Now usually I don't do this, but go ahead and break 'em off a little preview of the remix."
Embedding, sadly, is not permitted, but if you want to hear the remix to "Ignition," hot and fresh out the kitchen, it's here. I can't find a copy of the original, which is probably all to the best.