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Aerosmith turned 'American Idol' judge Steven Tyler sounds off

Steven Tyler will sit down with Matt Lauer in an exclusive interview that will focus on Steven Tyler's triumphant year, including a new book, Does the Noise in My Head Bother You?: A Rock ‘n’ Roll Memoir and his role on 'American Idol'.  Tyler also speaks candidly about overcoming drug addiction, his family and Aerosmith.  Watch the full Dateline report on Sunday, May 1st, at 7pm/6c.