Which celebrity's partnership with Beats Electronics helped transform the company from a struggling audio brand into a $3.2 billion acquisition by Apple in 2014?

The power of celebrity endorsements can dramatically transform a brand's fortunes overnight. Some partnerships between famous personalities and products have become legendary, creating massive revenue spikes and cultural phenomena. This trivia question explores one of the most successful celebrity endorsement deals that completely revitalized a struggling brand.

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Dr. Dre
Jay-Z
Pharrell Williams
Kanye West