Beastie Boys MC Adam Yauch, a.k.a. MCA, has died. He was diagnosed with throat cancer in 2009 and had been undergoing treatment.
In addition to his work in the seminal, influential, absurdly successful, and undeniably excellent hip-hop group, he also ran his own film production company and co-founded a fund to support Tibetan independence. The Beastie Boys were inducted into the Rock and Roll Hall of Fame last month.
His voice hasn't dropped yet, but he's still dropping beats. Thirteen-year-old Chris Miles' submission tape for America's Got Talent has already impressed the denizen of the internet for his fast rapping ability, though his casual use of the word that rhymes with "tigga" raises some eyebrows.