Demetri Martin (born May 25, 1973) is an American stand-up comedian, actor, artist and musician. He is best known for his work as a stand-up comedian, being a contributor on The Daily Show and his Comedy Central show Important Things with Demetri Martin. In stand-up, he is known for his deadpan delivery.
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One of Vladimir de Pachmann's favorite tricks before a recital was to play about with the piano stool, adjusting and readjusting it, until the audience became desperate. Then he would rush into the wings to fetch a large book, place it on the seat, and try that. He would indicate that all was still not satisfactory and would tear one page from the book and try again.