John Legend, H.E.R. and Dolly Parton are among this year’s Peabody Awards presenters. The other celebrities who are scheduled to present the winners of the 82nd Annual Peabody Awards include Melissa McCarthy, Morgan Freeman, Adam Scott, Christiane Amanpour, Stephen Colbert, Rep. Adam Kinzinger, Rep. Adam Schiff,Lisa Ling, and Jon Stewart. The 30 winners will be…