"You Know I'm No Good" is the second single from Amy Winehouse's second studio album, Back to Black (2006). The track follows in the footsteps of Winehouse's previous singles of a mix of jazz and R&B with her soulful, raspy vocals and this time hip hop-inspired beats over it. Recorded solo, and then again with guest vocals from Wu-Tang Clan member Ghostface Killah, the original appeared on Winehouse's album, and the version featuring Ghostface Killah appears on his album, More Fish.
Arctic Monkeys covered this song on Jo Wiley's Live Lounge on BBC Radio 1 in their second appearance there, along with their single at the time Brianstorm. In the summer of 2007, "You Know I'm No Good" was also incorporated into ads for AMC's new T.V. drama, Mad Men as well as the opening to ITV's Secret Diary of a Call Girl.
On the recap of "The Best Songs of 2007" by the magazine Entertainment Weekly this song ranked at number 2.
