The following similarities are very well-known, but I haven't seen them posted in this topic, so there they go:
Sonic The Hedgehog 3 - Credits
Michael Jackson - Stranger In Moscow
Sonic The Hedgehog 3 - Ice Cap Zone Act 1
The Jetzons - Hard Times
Sonic The Hedgehog 2 - Ending
Dreams Come True - Sweet Dream
Actually, the chord progressions are identical in all the cases (and even the whole melody in some of them), so we could even say that they are cover/remixes.