‘Mamma Mia’ stars Lily James, Amanda Seyfried reveal what it’s like to work with Cher

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Lily James and Amanda Seyfried, two stars of the “Mamma Mia! Here We Go Again,” join TODAY’s Hoda Kotb to talk about what it was like to work on the musical sequel with legends like ABBA, Meryl Streep and Cher. James said singing in front of ABBA was “overwhelming,” while Seyfried called Cher “the most honest, sweet, caring, kind person I ever met.”