Written by: Amy Winehouse

Lyrics by: Amy Winehouse

Produced by: Salaam Remi

Performed by: Amy Winehouse (guitar), Amy Winehouse (background vocals), Salaam Remi (double bass, drums (drum set), piano), Vincent Henry (baritone saxophone, guitar, tenor saxophone), Bruce Purse (flugelhorn, trumpet)

Mixed by: Gary Noble, James M. Wisner (assistant)