Ariana Grande 'dumps' Scooter Braun too: Hollywood manager's career in crisis as 7 Rings singer joins Demi Lovato and J Balvin in severing ties... but Justin Bieber insists he's standing by him
Demi Lovato and Ariana Grande Exits Scooter Braun Management
Demi Lovato and Longtime Manager Scooter Braun Part Ways After 4 Years