Teenager Sanjaya Malakar was the season's most talked-about contestant for his unusual hairdo, and for managing to survive elimination for many weeks due in part to the weblog Vote for the Worst and satellite radio personality <answer>Howard Stern</answer>, who both encouraged fans to vote for him. However, on April 18, Sanjaya was voted off.
Which shock jock urged people to vote for Sanjaya?
Howard Stern