Demi Lovato Fans Think Their New Song Addresses Age Gap With Ex Wilmer Valderrama

Watch Demi Lovato Rip Through ‘Substance’ Rehearsal With New Guitarist Nita Strauss

Demi Lovato shares a video from their rehearsal as they prepare for world tour in August

'I really rarely think about substances': Demi Lovato opens up about sobriety in interview