"Beastie Boys" Adam Yauch has died, according to reports. He was 47.

Yauch, frequently known by his stage name MCA, reportedly died Friday morning after a long battle with cancer, according to Russell Simmons' website GlobalGrind.com.

Yauch announced in 2009 that he was battling cancer in a parotid gland and lymph node. (Watch Video Below)

REMEMBERING BEASTIE BOYS ADAM YAUCH [PHOTOS]

He co-founded the Beastie Boys in 1979 with Mike D. Mix Master and Ad Roc.

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