Last night was the White House Correspondents Dinner, also known as “Nerd prom”/”#nerdprom” or “Washington’s Worst Night Of The Year.” Still, President Obama, as well as the White House Correspondents Association and emcee Conan O’Brien, had some fun. For instance, Obama’s entrance music was DJ Khaled’s “All I Do Is Win” (featuring Ludacris, Rick Ross, T-Pain, and Snoop)—the President said, “Rush Limbaugh warned you about this—second term, baby.” He added, “My advisors were a little…