In today's Back Story, former WCBS station engineer Barry Siegfried recalls the time Billy Joel came to the station for an interview, and how he accidentally tried to kick Christie Brinkley out of the studio.

<p>In today's Back Story, former WCBS station engineer Barry Siegfried recalls the time Billy Joel came to the station for an interview, and how he accidentally tried to kick Christie Brinkley out of the studio.</p>

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