Aretha Franklin sings Nessun Dorma in her second performance at Festival of Families in Philadelphia after Pope Francis departed the venue.\rbr\rbrAretha Franklin sings Amazing Grace in front of Pope Francis at the Festival of Families in Philadelphia, September 26, 2015.\rbr\rbrAretha Franklin Nessun Dorma with an amazing ending. Pope Francis in Philadelphia 92615 World Meeting of Families.\rbr\rbr14 year old boy soprano Bobby Hill performs Pie Jesu in front of Pope Francis at the Festival of Families in Philadelphia, September 26, 2015.