Impossible

Credits

• Alicia Keys
  additional, arranger, background vocals, piano, producer
• Chops Horns
  brass
• Christina Aguilera
  background vocals
• Darryl Dixon
  brass
• Dave Pensado
  mix
• Dave Watson
  brass
• D’wayne Wiggins
  guitar
• Ethan Willoughby
  assistant
• Fred Maxwell
  brass
• Paul John
  drums (drum set)
• Rufus Jackson
  bass guitar
• Tony Black
  recording
• Uriah Duffy
  bass guitar