Michael Jackson's close friend Uri Geller still can't fathom that the King of Pop has died.

"I'm devastated. I just don't want to believe it," he told Usmagazine.com when reached by phone Thursday evening.

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Jackson was best man when Geller renewed his wedding vows in 2001.

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Added Geller, "He is my best friend. I just can't believe."

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Neil Portnow, of the Recording Academy, also spoke out about Jackson's passing:

"Rarely has the world received a gift with the magnitude of artistry, talent, and vision as Michael Jackson. He was a true musical icon whose identifiable voice, innovative dance moves, stunning musical versatility, and sheer star power carried him from childhood to worldwide acclaim. A 13-time GRAMMY recipient, Michael's career transcends musical and cultural genres and his contributions will always keep him in our hearts and memories. We are deeply saddened by this tragic news and our hearts go out to his family and to music lovers around the globe who mourn this great loss."

Jackson has won 13 Grammys and boast 13 number one singles.