The hip-hop magazine says Jay-Z tops the list because he's an industry leader and a top businessman, with his ventures with Live Nation and Rocawear, and his part-ownership of the New Jersey Nets.
Others on the list include Diddy, 50 Cent, Lil Wayne, will.i.am, Snoop Dogg, T-Pain and Kimora Lee Simmons.
President Barack Obama was given top billing on the honorary power list because of his influence on the new hip-hop generation.
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