Jay-Z working with "Black & Yellow" producers

By The Hip Hop WriterHip Hop Vibe Staff WriterBefore "Black & Yellow," Wiz Khalifa was a no-name in the rap game. The track was produced by Stargate, a production duo known for doing tracks with Ne-Yo. Despite already being known, their career boosted after working with Wiz. The duo teamed with Roc Nation in 2008 and Jay-Z is now ready.Jay-Z is currently working with Kanye West on their