有谁知道《麦迪的回忆》背景歌曲啊

R. Kelly-the world's greatest
http://mp3.baidu.com/m?f=ms&rn=&tn=baidump3&ct=134217728&word=R.+Kelly-the+world%27s+greatest&lm=-1
yea, uh, yea uh, this is the world's greatest,
yea uh, this is the world's greatest
i am a mountain
i am a tall tree
oh, i am a swift wing
sweeping the country
i am a river
down in the valley
oh, i am a vision
and i can see clearly
if anybody ask you who i am
just stand up tall
look 'em in the face and say...
i'm that star up in the sky
i'm that mountain peak up high
hey, i made it
i'm the world's greatest
and i'm that little bit of hope
when my back's up against the rope
i can feel it
i'm the world's greatest
the world's greatest, the worl