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Kanye West helps Mary J. Blige and Jay-Z kick off their "Heart of the City" tour in Miami. Plus: Kate Hudson, Madonna, Heidi & Spencer and more

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'HEART' TO 'HEART'

Tourmates Mary J. Blige and Jay-Z get a surprise visitor – Kanye West! – backstage Saturday at the American Airlines Arena in Miami where the two kicked off their "Heart of the City" co-headlining tour. And West joined the hip-hop stars onstage to perform his hit "Good Life" with Jay-Z.

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