This combination photo shows Lizzo performing at The Hollywood Palladium in Los Angeles on Oct. 18, 2019, left, and Billie Eilish performing at the Coachella Music & Arts Festival in Indio, Calif., on April 20, 2019. Eilish and Lizzo will perform at the 2019 American Music Awards, airing live on ABC from the Microsoft Theater in Los Angeles on Nov. 24.

(AP)