Performance Credits Justin Bieber Primary Artist Tim Stewart Guitar Usher Featured Artist Dwight Reynolds Keyboards Bonnie McKee Vocals (Background) Taylor Graves Vocals (Background) Technical Credits Nina Persson Composer Thabiso Nkhereanye Composer Blake Eiseman Engineer Delisha Thomas Composer L.A. Reid Executive Producer D. Reynolds Composer Leesa D. Brunson A&R Dirty Swift Producer,Vocal Producer Bruce Waynne Producer Sean Hamilton Composer Balewa Muhammad Composer,Producer Ezekiel Lewis Composer,Producer C. Stewart Composer Jaycen Joshua Mixing Corron Cole Composer Kuk Harrell Vocal Engineer,Vocal Producer Christopher "Tricky" Stewart Composer,Producer Chris Kraus Engineer Bill Malina Engineer,Vocal Producer S. Hamilton Composer Usher Raymond IV Composer,Executive Producer Peter Svensson Composer Ryon Lovett Composer Dave Pensado Mixing Christy Hall Production Assistant P. Svensson Composer Andrew Wuepper Mixing Assistant Dapo Torimiro Composer,Producer Giancarlo Lino Assistant,Mixing Assistant W. Nugent Composer K. Risto Composer D. Torimiro Composer Kevin Risto Composer Waynne Nugent Composer Tom Coyne Mastering E. Lewis Composer J. Bunton Composer Paul Bailey Assistant Doug Joswick Package Production Anesha Birchett Composer Vanessa Price Grooming Dwight Reynolds Composer Todd Russell Design,Art Direction Gabriela Schwartz Marketing Pamela Littky Photography A.J. Benson A&R Tashia Stafford A&R Scott "Scooter" Braun Executive Producer Dernst Emile II Composer,Producer Justin Bieber Composer Daria Hines Stylist Brian "B-Luv" Thomas Engineer Chris Baldwin Photography Christopher Hicks Producer Dave Pensaod Mixing DJ Frank E Producer,Vocal Producer Jeremy Stevenson Engineer Pretty Boi Fresh Producer Sean P. Hamilton Producer Steve Owens A&R Rosalind Harrell A&R Yolanda Ray A&R Zack Atkinson Design,Art Direction James Bunton Composer Alexander Parhm Composer Steven Battey Composer Carlos Battey Composer Hyuk Shin Composer Mason Levy Composer Jesse Wilson Composer Antea Birchett Composer Lonnie Breaux Composer