Question: Fergie and GoonRock recorded a song with Kamaal Ibn John Fareed whose stage name is?
Sentence (from "Q-Tip (musician)"): John Bush of AllMusic called him "the best rapper/producer in hip-hop history," while editors of About.com placed him #17 on their list of the Top 25 Hip-Hop Producers, as well as placing him #38 on their list of the Top 50 MCs of Our Time.
Relevant evidence: No