Question: As of May 2017, how many digital units in the United States has the Jay-Z and Kanye West song that Chauncey Hollis, Jr is best known for sold?
Sentence (from "Hit-Boy"): In December 2012, it was revealed he had signed a recording contract with Interscope Records, and subsequently founded his own record label imprint, Hits Since '87.
Relevant evidence: No