Jabarkan Penyanyi dan musisi dari Dancing with the Devil... the Art of Starting Over

Demi Lovato – vokal utama, spoken word (3-4, 12), vokal latar (6)

Ariana Grande – feature artis (9)

Sam Fischer – feature artis (10), vokal latar (10)

Noah Cyrus – feature artis (13)

Saweetie – feature artis (15)

Dayyon Alexander – keys (1), programming (1)

Mitch Allan – programming (2, 17), bass (2, 17), keyboards (2), guitar (2, 17), percussion (2, 17)

Marcus Andersson – guitars (11, 18), bass (11), drum programming (11, 18), synth programming (11, 18), vokal latar (11)

David Angell – violins (10)

Monisa Angell – viola (10)

Bianca "Blush" Atterberry – vokal latar (2)

Lauren Aquilina – string programming (11), horn programming (11), synth programming (11, 18), vokal latar (11)

"Downtown" Trevor Brown – guitar (5-6, 12, 14, 20), bass (5, 12, 14, 20), keys (6, 14, 20), vokal latar (6, 12), vokal sample (14, 20)

Alex Brumel – pedal steel guitar (7)

Erin Cafferky – vokal latar (10)

Eren Cannata – gitar (7-8, 19), keyboard (7-8, 19), drum programming (7-8), bass (8), programming (19)

Philip "Phil the Keys" Cornish – piano (3)

Peter Lee Johnson – string (9)

Jane Darnall – violin (10)

David Davidson – violin (10)

Madison De La Garza – spoken word (3)

Ayanna Elese – vokal latar (10)

Conni Ellisor – violin (10)

Steve Epting – vokal latar (10)

Warren "Oak" Felder – keys (5-6, 8, 12, 14-16, 20), bass (6, 14-16, 20), drum programming (6, 15-16), vokal latar (6, 12, 20), drum (8)

Kaye Fox – vokal latar (10)

Griffin Goldsmith – bass (13), drum (13)

Caleb Hulin – programming (2), guitar (2)

Alexis James – vokal latar (10)

Midi Jones – programming (2), keyboard (2), piano (2)

Jussifer – bass (7), gitar (7), keyboard (7)

Elizabeth Lamb – viola (10)

Madison Love – vokal latar (15)

Matthew Koma – piano (13), synths (13)

Pat McManus – gitar (10)

Craig Nelson – bass (10)

Alex Nice – keys (8, 16), gitar (16), string (16)

Caroline Pennell – vokal latar (5-6, 11-12)

Pop & Oak – instrumentation (15), programming (15)

Carol Rabinowitz – cello (10)

Sari Reist – cello (10)

Rykeyz – programming (10), drum (10), bass (10), keyboard (10), perkusi (10), string orchestration (10), vokal latar (10)

Louis Schoorl – piano (17)

Keith Sorrells – gitar (8, 16), drum programming (8, 16), bass (16)

Vegaz Taelor – vokal latar (10)

Cynthia Tolson – violin (13), viola (13), cello (13)

Justin Tranter – vokal latar (6, 12)

Andrew "Pop" Wansel – drum programming (15)

Desiree "DeSz" Washington – vokal latar (10)

Chelsea "Peaches" West – vokal latar (10)

Karen Winkelmann – violin (10)

Zaire Koalo – drum programming (5-6), vokal latar (6, 12), drum (12, 14, 20)