Check out our The Notorious B.I.G. section for more posts about The Notorious B.I.G..
Not "new", but something I just noticed myself. "Three Bricks" by Ghostface Killah featuring The Notorious B.I.G. and Raekwon on Ghostface's "Fishscale" album is different from the "Duets: The Final Chapter" iTunes bonus track "Three Bricks" by The Notorious B.I.G. featuring Ghostface Killah and Raekwon.

The vocals are the same, but the music behind it is different. You can listen to a sample at