Which music artist's endorsement deal with their signature headphone line resulted in the largest acquisition in Apple's history when the company purchased the brand in 2014?

In the competitive music industry, brand endorsements can make or break an artist's commercial success. These partnerships go beyond simple advertising—they create cultural moments that define generations. From signature instruments to clothing lines, headphones to beverages, musicians have leveraged their star power to build massive brand empires. Test your knowledge about some of the most lucrative and influential music endorsement deals that changed both industries forever.

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Dr. Dre (Beats by Dre)
50 Cent (SMS Audio)
Jay-Z (Roc Nation Aviators)
Ludacris (Soul by Ludacris)