Watch Ashlee Simpson Make a Rare Return to the Stage to Perform With Demi Lovato

Ashlee Simpson Joins Demi Lovato Onstage For a Surprise Performance of Her Hit 'Lala'

Ashlee Simpson Makes Rare Return To The Stage To Perform ‘La La’ With Demi Lovato: Watch

Demi Lovato's Set List Revealed After Kicking Off U.S. Leg of 2022 Tour! (Photos)