Dr. Dre — Beats by Dre

Dr. Dre's sale of Beats Electronics to Apple for $3 billion in 2014 remains the largest acquisition in Apple's history, netting him an estimated $750 million after taxes. In striking contrast, his entire music career—spanning NWA, The Chronic, 2001, and producing for Eminem and 50 Cent—earned him roughly $100 million over three decades. This means a single headphone brand delivered 7.5x the income of his legendary hip-hop production. After the deal closed, he celebrated with Tyrese, declaring himself hip-hop's first billionaire.