Till the World Ends

Credits

• Alexander Kronlund
  instrument, programming
• Aniela Gottwald
  assistant
• Billboard
  instrument, producer, programming
• Bonnie McKee
  background vocals
• Britney Spears
  lead vocals
• Clint Gibbs
  task
• Dr. Luke
  instrument, producer, programming
• Emily Wright
  engineer, task
• Irene Richter
  task
• John Hanes
  task
• Max Martin
  background vocals, instrument, producer, programming
• Myah Marie
  background vocals
• Patrizia Rogosch
  background vocals
• Sam Holland
  background vocals, engineer
• Serban Ghenea
  mix
• Stacey Barnett
  background vocals
• Tim Roberts
  assistant, task
• Łukasz Gottwald
  background vocals