Katy Perry, Halsey, John Legend, Donald Glover, and more performed on Sunday night's Disney Family Singalong: Volume II. Entertainment Tonight reports that the second installment of the series was again hosted by Ryan Seacrest. Seth Rogen opened the show with the Muppets, then launched intoThe Lion King's "Hakuna Matata" with Donald Glover and Billy Eichner. A pregnant Katy Perry and her dog Nugget wore elephant costumes as she sang "Baby Mine" fromDumbo. Halsey donned a long, red wig to get into character asThe Little Mermaid's Ariel to perform "Part of Your World." And Keke Palmer was joined by dancers from Dancing With the Stars to perform a breathless "Zero to Hero" from Hercules. John Legend, Jennifer Hudson, Idina Menzel, and Ben Platt also appeared during the hour-long program.