Question: What job do the writer of Lace Up and Waka Flocka Flame have in common?
Sentence (from "Waka Flocka Flame"): Records in 2009, he became a mainstream artist with the release of his singles "O Let's Do It", "Hard in da Paint", and "No Hands", with the latter peaking at number 13 on the US "Billboard" Hot 100.
Relevant evidence: No