Artist: Amy Winehouse - Producer: Mark Ronson - Featuring: JAY-Z - Mixer: Tom Elmhirst - Other: Matt Paul - Bass Guitar: Nick Movshon - Drums: Homer Steinweiss - Guitar: Thomas Brenneck - Guitar: Binky Griptite - Piano: Victor Axelrod - Trumpet: Dave Guy - Tenor Saxophone: Neal Sugarman - Baritone Saxophone: Ian Hendrickson-Smith - Clapping: Mark Ronson - Clapping: Vaughan Merrick - String Arranger: Chris Elliott - Co-Arranger: Mark Ronson - Co-Arranger: Gabriel Roth - Recording Engineer: Mark Ronson - Recording Engineer: Gabriel Roth - Asst. Recording Engineer: Jesse Gladstone - Asst. Recording Engineer: Mike Makowski - Violin: Perry Montague-Mason - Violin: Chris Tombling - Violin: Mark Berrow - Violin: Warren Zielinski - Violin: Liz Edwards - Violin: Boguslaw Kostecki - Violin: Peter Hanson - Violin: Jonathan Rees - Violin: Tom Pigott-Smith - Violin: Everton Nelson - Viola: Bruce White - Viola: Jon Thorne - Viola: Katie Wilkinson - Viola: Rachel Bolt - Cello: Anthony Pleeth - Cello: Joely Koos - Cello: John Heley - Harp: Helen Tunstall - Trumpet: Steve Sidwell - Trombone: Richard Edwards - Alto Sackbut: Andy Mackintosh - Alto Sackbut: Chris Davies - Tenor Sackbut: Jamie Talbot - Tenor Sackbut: Mike Smith - Sackbut: Dave Bishop - Percussion: Frank Ricotti - Asst. Recording Engineer: Dom Morley