initiated by Washington Post columnist Gene Weingarten, Bell donned a baseball cap and played as an incognito street busker at the Metro subway station L'Enfant Plaza in Washington, D.C. on January 12, 2007. The experiment was videotaped on hidden camera; among 1,097 people who passed by, only seven stopped to listen to him, and only one recognized him. For his nearly 45-minute performance, Bell collected $32.17 from 27 passersby (excluding $20 from the passerby who recognized him). - credited to Wiki.