Steve Stoute On "The Tanning Of America"

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Click for full photo gallery: Cash Kings 2011: Hip-Hop's Top 20 Earners

This summer, as Beyoncé's set at Live Nation's Glastonbury music festival in the U.K. was winding down, she took a break from singing her own songs and launched into a rendition of "Happy Birthday," exhorting the crowd to join her.

The lucky recipient of this attention from one of the world's premier entertainers, backed by nearly 200,000 amateurs, wasn't Beyoncé's husband, Jay-Z, or the chairman of her record l...