Celine Dion did not seem excited to play Jimmy Fallon's "Wheel of Musical Impressions" game on Thursday's Tonight Show, but she grudgingly got so into it that she helped Fallon with his impersonation of Michael Jackson singing "One Dance." Fallon also got in a Johnny Cash number, but Dion was the star of the game, trotting out impersonations of Cher (singing "Frère Jacques" — like that was random), Rihanna, and Sia.