Photo: Netflix By the time Sheryl Underwood took the podium Sunday night halfway through the live Roast of Kevin Hart on Netflix , the stage was set for a memorable rebuttal. Despite being one of the least recognizable faces on a dais that included celebrities like Chelsea Handler and Pete Davidson, Underwood had consistently been the target of some of the night’s sharpest barbs, including the first truly pearl-clutch-worthy joke of the night, courtesy of host Shane Gillis. “Sheryl’s husband