Yannique De Lisle Barker (born January 25, 1985), better known by his stage name Stack$, is an American hip hop musician from Miami who grew up in Washington, D.C. Stack$ earned his name from a Miami rapper, Brisco, referring to his "ill" songwriting skills and multi-dimensional personality. His father managed Sly & the Family Stone and Peaches & Herb, while co-producing “Midnight Train to Georgia” with his partner Tony Camillo. Later, he founded a successful aerospace company (OAO Corporation), which he later sold to Lockheed Martin, the world's largest defense contractor. Barker also founded OAO Technology Solutions, an information systems company, which he took public via an IPO on the NASDAQ. He later moved his family to South Beach, Florida where he was one of the three partners who built the Royal Palm Hotel on Collins Avenue, and he founded or bought several restaurants and night clubs in South Beach, including Solid Gold, Club 320, and SoBe Live.