Mentalist Oz Pearlman, pictured in December, has gone viral for appearing to read the minds of news anchors, podcast hosts, professional athletes and Fortune 500 CEOs. His next venue is a room of politicians and political journalists in D.C. Arturo Holmes/Getty Images hide caption toggle caption Arturo Holmes/Getty Images The White House Correspondents' Association Dinner, a century-old night of mingling for politicians and political journalists, won't feature a roast by a comedian this year. Instead, bucking decades of tradition, Saturday's headliner is a mentalist: Oz Pearlman, whose mind-reading, PIN-guessing tricks have made him a favorite of social media, late-night shows, professional sports teams and corporate clientele.…