Drums, Guitar – Luke PotashnickProducer – Justin "DJ Frank E" Franks*, Matt PrimeRecorded By – Charlie Puth, DJ Frank E*, Matt PrimeWritten-By – Breyan Isaac, Charlie Puth, Justin "DJ Frank E" Franks*, Matt Prime, Maureen "Mozella" McDonald*, Shy Carter

Arranged By [Strings] – Nick SeeleyCello – Joseph KuipersCo-producer, Recorded By – Charlie PuthConductor – Juan Chaves Engineer – Samuel KalandjianProducer – Infamous, JR Rotem*Viola – Emily Williams , Mark LandsonViolin [1st] – Miika Gregg, Veronica GanViolin [2nd] – Elizabeth Elsner, Mark LandsonWritten-By – Alexander Izquierdo, Charlie Puth, Infamous, James Abrahart*, Jonathan Rotem*

Featuring – Meghan TrainorProducer – Charlie PuthRecorded By – Ryan GladieuxWritten-By – Charlie Puth, Jacob Luttrell, Julie Frost, Nick Seeley

Co-producer – Breyan IsaacProducer, Recorded By – Charlie PuthWritten-By – Breyan Isaac, Charlie Puth, Ruby Tartt*, Vera Hall

Featuring – Selena GomezProducer, Recorded By – Charlie PuthWritten-By – Charlie Puth, Jacob Kasher Hindlin*, Selena Gomez

Producer, Recorded By – Charlie PuthWritten-By – Charlie Puth, Josh Kear

Arranged By [Orchestra] – Franck Van Der Heijden, Giorgio TuinfortBass, Drum Programming, Producer, Recorded By, Synthesizer – Jesse ShatkinConductor [Orchestra] – Franck Van Der HeijdenEdited By – Marcus van WattumEngineer [Additional] – Charlie Puth, Jaime WoskOrchestra – Riciotti Ensemble*Performer [Orchestra] – Bram Faber, David Faber , Diewertje Wanders, Floortje Beljon, Ian de Jong, Judith Van Driel, Kasper Stern, Loes Dooren, Lotte De Vries, Mark Mulder, Marleen Wester, Sofie van der Pol, Stijn Brinkman, Tseroeja van den BosProducer [Additional] – Matt PrimeRecorded By [Orchestra] – Paul Pauwer*Written-By – Bonnie McKee, Charlie Puth, Giorgio Tuinfort, Thomas Troelsen

Engineer [Additional] – Ryan GladieuxProducer – DJ Frank E*, Geoffro CauseRecorded By – Charlie PuthWritten-By – Charlie Puth, DJ Frank E*, Geoffro, Marc E. Bassy, Paris Jones

Acoustic Guitar, Guitar, Piano, Producer, Synth, Tambourine – Johan Carlsson Backing Vocals, Written-By – Charlie Puth, Johan Carlsson , Ross GolanCello – David BukovinszkyCo-producer – Charlie PuthEdited By [Strings], Recorded By [Strings], Strings – Mattias BylundEngineer – Cory Bice, Sam HollandProducer [Vocals] – Johan Carlsson , Peter Karlsson*Programmed By – Charlie Puth, Johan Carlsson Violin – Mattias Johansson

Producer, Recorded By – Charlie PuthWritten-By – Breyan Isaac, Charlie Puth

Arranged By [Rhythm], Programmed By – Rick ParkhouseDrums, Keyboards – George TizzardProducer – Red Triangle Productions*Recorded By – Alex Heme Toval*, Rick ParkhouseVocals [Additional] – George Tizzard, Jack Martello, Rick ParkhouseWritten-By – Charlie Puth, George Tizzard, Jack Martello, Rick Parkhouse, Shy Carter

Featuring – Shy CarterProducer, Recorded By – Charlie PuthWritten-By – Charlie Puth, David Brook

Featuring – Charlie PuthProducer – Andrew Cedar, Charlie Puth, Frank E Written-By – Andrew Cedar, Cameron Thomaz, Charlie Puth, Justin Franks