Being a pioneering force in the Hip-Hop movement, autographs from the Beastie Boys have become increasingly desirable. However, collectors have come to find out that the Beasties were some of the most aloof and difficult signers in music, making their items scarce. Furthermore, this is the first and only item we've ever handled with Yauch signing his legal name. Beastie collectors--take notice! Authenticated and encapsulated by Beckett Authentication Services, with the piece also being accompanied by a full Letter of Authenticity from Beckett Authentication Services (BAS).