Bass – Kenny Johnson Drums – Dorian CrozierMixed By – Chris Lord Alge*Producer – SuperSpy Written-By, Backing Vocals – Lindy RobbinsWritten-By, Guitar, Programmed By, Synth – Isaac HassonWritten-By, Programmed By, Keyboards – Mher Filian

Drums – Dorian CrozierGuitar – Will Owsley*Mixed By – Chris Lord-AlgeProducer, Recorded By, Bass, Guitar, Programmed By, Keyboards – John FieldsProgrammed By, Percussion – Ken ChastainSynthesizer – Tommy BarbarellaWritten-By – Anne Preven, Demi Lovato, Scott Cutler

Bass – John FieldsDrums – Dorian CrozierMixed By – Chris Lord Alge*Producer – SuperSpy Written-By – Demi LovatoWritten-By, Guitar, Programmed By, Synth – Isaac HassonWritten-By, Programmed By, Keyboards – Mher Filian

Drums – Michael BlandFeaturing [Backing Vocals] – Jon McLaughlinGuitar – Will Owsley*Mixed By – Paul David HagerMixed By, Producer, Recorded By, Written-By, Bass, Guitar, Keyboards, Programmed By – John FieldsWritten-By – Demi LovatoWritten-By, Piano, Synthesizer, Backing Vocals – Jon McLaughlin

Guitar – Jesse AstinMixed By – Paul David HagerMixed By, Producer, Recorded By, Drums, Bass, Guitar, Keyboards, Programmed By – John FieldsPercussion, Programmed By – Ken ChastainWritten-By – Anne Preven, Demi Lovato, Scott Cutler

Cello – Matt Cooker*, Richard Dodd Conductor, Arranged By [Strings] – Stephen LuCopyist – Chris Anderson-Bazzoli*Drums – Dorian CrozierGuitar [Phasor Guitar] – Will Owsley*Mixed By – Paul David HagerMixed By, Producer, Recorded By, Bass, Guitar, Keyboards, Percussion – John FieldsViola – David Sage, Lauren ChipmanViolin – Daphne Chen, Eric Gorfain, Radu Pieptea, Wes PrecourtWritten-By – Demi Lovato

Arranged By [Strings], Conductor – Stephen LuCello – Matt Cooker*, Richard Dodd Copyist – Chris Anderson-Bazzoli*Drums – Michael BlandMixed By – Paul David HagerMixed By, Producer, Recorded By, Written-By, Bass, Guitar, Keyboards, Programmed By – John FieldsPercussion, Programmed By – Ken ChastainViola – David Sage, Lauren ChipmanViolin – Daphne Chen, Eric Gorfain, Radu Pieptea, Wes PrecourtWritten-By – Demi LovatoWritten-By, Piano, Synthesizer – Jon McLaughlin

Backing Vocals – Nikki FloresDrums [Acoustic Drum Samples] – Geoff DugmoreMixed By – Paul David HagerProducer, Recorded By, Written-By, Instruments [All], Programmed By – Gary ClarkWritten-By – E. Kidd Bogart*, Victoria Horn

Guitar – Will Owsley*Mixed By – Paul David HagerMixed By, Producer, Recorded By, Bass, Guitar, Keyboards, Programmed By, Vocals – John FieldsWritten-By – Demi Lovato, P.J. Bianco*Written-By, Drums, Guitar, Vocals – Nick Jonas*

Featuring [Guitars] – John MayerMixed By – Paul David HagerMixed By, Producer, Recorded By – John FieldsWritten-By – Demi Lovato, John Mayer

Mixed By – Paul David HagerMixed By, Producer, Recorded By, Written-By – John FieldsWritten-By – Anne Preven, Demi Lovato

Mixed By – Paul David HagerMixed By, Producer, Recorded By – John FieldsWritten-By – Demi Lovato, Lindy Robbins, Toby Gad

Mixed By – Bob ClearmountainProducer, Recorded By, Written-By – Adam Watts, Andy DoddWritten-By – Demi Lovato

Mixed By, Producer, Written-By – Aris ArchontisProducer, Written-By – Chen Neeman, Jeannie Laurie*