How does a comedian, View woman, scene-stealer in Now and Then, sitting at the side of Tony host James Corden, end up spitting bars about a dead white man named Hamilton? Well, that question doesn’t requite a two-hour musical to answer: Rosie O’Donnell has seen Hamilton a whopping 12 times, which means of course she wants to do the show’s opening number alongside Corden, the patron saint of rapping white people on TV. (She did it flawlessly; he flubbed a few lines here and there.) Watch it and be amazed at their skills — or, if you have no interest in Hamilton, just do as that blonde lady sitting next to Rosie does and nod along politely.