I want to know the answer to the following question:
What rappers were featured in the songs that Kanye produced for Tell 'Em Why U Madd?
All the background I'm provided with is that "Why U Madd, an album that was released by D-Dot under the alias of The Madd Rapper; a fictional character he created for a skit on The Notorious B.I.G.'s second and final studio album Life After Death.". Is that enough to answer the question?