Ace Young

• 
  Maroon 5
  Back Together

• David Paul Campbell
• Conductor, String Arrangements

• Mark Smidt
• Horn

• Shane Swayney
• Guitar, Engineer, Programming

• Dan Warner
• Guitar, Engineer

• Bluu Suede
• Vocals (Background)

• Robert Ikiz
• Percussion

• Gregg Mangiafico
• Keyboards, String Arrangements, String Conductor

• Justin Niebank
• Engineer

• Pamela Sixfin
• Violin

• Alan Umstead
• Violin

• Catherine Umstead
• Violin

• Mario Valdes
• Assistant Engineer

• Gary VanOsdale
• Viola

• Mary Kathryn Vanosdale
• Violin

• Kris Wilkinson
• Viola

• Drew Bollman
• Assistant Engineer

• Justin Neibank
• String Engineer

• Chris Kent
• Bass

• Neil Zlozower
• Photography

• Richard Bravo
• Percussion, Engineer

• Pat Bergeson
• Harmonica

• Dan Muckala
• Piano, Engineer, Producer

• Harry "Slick" Sommerdahl
• Keyboards

• Thomas Lindberg
• Bass

• Andreas Carlsson
• Producer

• Jules Gondar
• Engineer

• Greg Collins
• Mixing

• Steve Crowder
• Assistant Engineer

• Carole Rabinowitz-Neuen
• Celli

• John 5
• Guitar

• Craig Lozowick
• Engineer

• Maxwell Abrams
• Sax (Tenor)

• Chuck Butler
• Guitar (Acoustic), Guitar (Electric), Bass, Programming

• Leslie Richter
• Assistant Engineer

• Kalle Engstrom
• Keyboards, Producer, Engineer, Mixing, Programming

• Chris Baseford
• Engineer

• Will L. Thompson
• Assistant Engineer

• Jay Ruston
• Engineer

• Jason Paige
• Vocals (Background)

• Lowell Reynolds
• Assistant Engineer

• Julian Bunetta
• Producer, Engineer, Musician, Mixing

• John Netti
• Assistant Engineer

• Will Champlin
• Vocals (Background)

• Ness Bautista
• Vocals (Background), Producer

• Ali Helnwein
• Production Coordination

• Marcus "Stix" Finnie
• Drums

• Ace Young
• Vocals (Background)

• Mika Lett
• Vocals (Background)

• Jon Vella
• Guitar, Programming, Engineer, Producer

• Gary Go
• Keyboards, Engineer, Producer, Vocals (Background), Programming

• Kirsten Cassell
• Celli

• Chris Willis
• Vocals (Background)

• Sarah Deane
• Production Assistant

• Donald Clive Davidson
• Violin

• Desmond Child
• Producer, Executive Producer

• David Angell
• Violin

• Eric Bazilian
• Guitar, Engineer

• Randy Cantor
• Engineer

• Brian Coleman
• Production Coordination

• David Davidson
• Violin

• Connie Ellisor
• Violin

• Ben Fowler
• Engineer

• Carl Gorodetzky
• Violin, Contractor

• Lee Levin
• Drums, Engineer