K & 1 are very successful on the refrain or chorus of this song. I assigned my other grade levels to learn 1 verse each and then everyone chants (raps) together the refrain. Catchy, fun and gets the message through to kids to live drug free. It can be adapted to fit with any grade level.
If you need the track to be slower, I recommend using Audacity (there's a setting to slow it down without losing pitch of the background instruments)