Adam Yauch aka MCA of the Beastie Boys dead at 47: Celebrity reactions

Slideshow posted in Photos | Friday, May 04, 2012

17 of 20: expressed his sadness over the loss of Beastie Boy member MCA.

'#restinpeaceMCA 1 of my favorite hiphop raised a lot of us & now we have to wake up because are hero's are dying too younge,' he Tweeted.

(Pictured: appears in an undated photo posted on his official Facebook page.) (