The Hardest Part

Mastering Engineer: George Marino

Assistant Engineer: Adam Noble

Assistant Engineer: Adam Scheuermann

Assistant Engineer: Andrea Wright

Strings: Ann Lines

Strings Arranger: Audrey Riley

Strings: Audrey Riley

Assistant Engineer: Brad Spence

Assistant Engineer: Bryan Russell

Programmer: Carmen Rizzo

Mastering Engineer: Chris Athens

Acoustic Guitar: Chris Martin

Keyboards, Organ, Piano: Chris Martin

Producer: Chris Martin

Lead Vocals: Chris Martin

Strings: Chris Tombling

Assistant Engineer: Dan Porter

Producer: Danton Supple

Strings: Greg Warren Wilson

Bass Guitar: Guy Berryman

Producer: Guy Berryman

Synthesizer: Guy Berryman

Backing Vocals: Guy Berryman

Assistant Engineer: Jake Jackson

Assistant Engineer: Jon Bailey

Assistant Engineer: Jon Withnall

Electric Guitar: Jonny Buckland

Producer: Jonny Buckland

Engineer, Pro Tools: Keith Gary

Mixing Engineer: Keith Gary

Strings: Laura "Melhewish" Melhuish

Programmer: Mark Phythian

Assistant Engineer: Mathieu LeJeune

Guitar Technician: Matt McGinn

Mixing Engineer: Michael H. Brauer

Assistant Engineer: Mike Pierce

Strings: Peter Lale

Strings: Richard George

Assistant Engineer: Rob Smith

Programmer: Rob Smith

Assistant: Robert Smith

Strings: Susan Dench

Assistant Engineer: Taz Mattar

Mastering Engineer: Ted Jensen

Assistant Engineer: Tim Roe

Drums, Percussion: Will Champion

Producer: Will Champion

Backing Vocals: Will Champion

Mixing Engineer: Will Hensley

Writer: Chris Martin

Writer: Guy Berryman

Writer: Jonny Buckland

Writer: Will Champion