Beastie Boys co-founder Adam Yauch passed away today at age 47. In 2009, Yauch announced he was battling a cancer that infected his salivary glands and lymph nodes, a battle it is truly unfortunate that he lost. Yauch was a creative force who balanced his musical roots with an interest in film. After directing several of the group's music videos he tried his hand at documentary filmmaking with "Gunnin' for That #1 Spot" and founded the production company Oscilloscope Pictures (an off-shoot of his Oscilloscope Laboratories). He is survived by his wife and daughter.