There's loads of remixes of this classic out there but in my opinion these two are the best ones. What's special about these edits is that they contain unreleased vocals and ad-libs not heard on the album version. This is because Masters At Work and Frankie Knuckles both had access to the original master tapes of the song while doing their remixes.
Michael Jackson - Rock With You (Masters At Work Remix) [320 kbps, zShare]
Michael Jackson - Rock With You (Frankie's Favorite Club Mix) [320 kbps, zShare]