Chance the Rapper, Pharrell, Smokey Robinson & More Celebrate Michael Jackson's 60th Birthday

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Michael Jackson at a press conference at the O2 Arena on March 5, 2009 in London.

Wednesday (Aug. 29) would have been Michael Jackson's 60th birthday. To commemorate the King of Pop -- who died in June 2009 at age 50 -- celebrities from Pharrell Williams and Chance the Rapper to Smokey Robinson and Akon have taken to social media to share sweet messages in tribute to one of music's greatest legends. 

See the tweets below.