F*ck the bucket ice! 50 cents mocks ice bucket challenge…asked Mayweather to read Harry Potter.

It’s on! 50 Cent joined in on the ice bucket fever, using the ALS fundraiser as an opportunity to challenge Floyd Mayweather.  The rapper, 39, took to Facebook on Thursday, Aug. 21, to share a video of himself throwing down the gauntlet to Mayweather, 37.

"This is a special challenge for you, Floyd!” 50 Cent says in the clip. “If you can read one full page of a Harry Potter book, I’ll give $750,000 to whatever charitable organization you want to.”

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