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There's no question that "Pac Man" is the best pound-for-pound fighter in the world after beating up Miguel Cotto to win his seventh title in seven weight classes. But there's also no question that Pacqiao might also be the worst singer in the world. Moments after beating Cotto, Pacquiao had a concert at Mandelay Bay. Let's just say he sounded like a boxer trying to sing after a championship fight.

Text: Arash Markazi/SI.com
Photo: Gabriel Bouys/AFP/Getty Images

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