Adam Yauch (MCA) of the Beastie Boys dead at 48
Ron Galella, Ltd. / WireImage
The Beastie Boys, from left, Adam Horovitz, Mike Diamond and Adam Yauch in an undated file photo.
Adam Yauch, one-third of the pioneering hip-hop group the Beastie Boys, has died at the age of 48, Rolling Stone has learned. Yauch, also known as MCA, had been in treatment for cancer since 2009. The rapper was diagnosed in 2009 after discovering a tumor in his salivary gland.