What is the song to the Cleveland Cavaliars 2007 Finals introduction song when they announce the starters?

Answer 1

That song would be "The Second Coming" by juelz santana. It was originally the song to a sweet nike commercial for the new nike air force 25 Look below for a link of the commercial.
FYI: the song in the commercial is not the whole song, the whole song is about 2 Minutes.

Answer 2

Are you talking about the orchestral piece with all the brass and the hip hop line running under it?
That piece is an adaptation (and not a very good one) of a piece called "Pictures at an Exhibition" by Modest Mussorgsky. If you want to hear the music the way it's meant to be, get a copy of the original.