Beastie Boys star Adam Yauch has died at the age of 47.
Hip-hop mogul Russell Simmons's website GlobalGrind.com first reported the death, while TMZ has spoken to independent sources.
Yauch, also known by his stage name MCA, was diagnosed with cancer back in July 2009, originally resulting in the cancellation of the group's tour and the delay of their album Hot Sauce Committee.
Bandmate Adam 'Ad-Rock' Horovitz confirmed that the star was still receiving treatment last May.
It is currently unclear whether his battle with the disease was the cause of his passing.