Question: Which rapper featured as a guest on the song "Bandz a Make Her Dance" joined the label Cash Money Records at the age of nine?
Sentence (from "Lil Wayne"): In 1991, at the age of nine, Lil Wayne joined Cash Money Records as the youngest member of the label, and half of the duo The B.G.'z, alongside fellow New Orleans-based rapper Lil' Doogie.
Relevant evidence: Yes