Do you mean other tracks with the Martin Luther King "I have a dream" speech?
In that case, it could be either
11th St - Billys Dream
(MLK speech over Billie Jean (Bushwacka! remix)
or
Octave One - Blackwater (Terrence Parkers "Spirit of Detroit" remix)
(Absolutely superb use of MLK speech over slightly rer-edited Strings mix of BlackWater)
Although, tp be fair, lots of people (its piss easy and can sound pretty good) just lay the speech acapella on its own over a track.
Didi you hear the same version more than once by differrent DJs/Places