Lagu You Know I'm No Good merupakan lagu yang dinyanyikan oleh Amy Winehouse. "You Know I'm No Good" menggambarkan kesedihan yang tak harus berisikan ratapan, suasana hati gloomy dan mellow. Intensitas dan gelap disuarakan Amy Winehouse secara romantis melalui hubungan penuh emosi melalui lagu lagu tersebut.
Verse : Meet you downstairs in the bar and hurt Your rolled up sleeves in your skull t shirt You say, “What did you do with him today?” And sniffed me out like I was Tanqueray Pre Chorus : Cause you're my fella, my guy Hand me your stella and fly By the time I'm out the door You tear men down like Roger Moore Chorus : I cheated myself like I knew I would I told ya I was trouble, you know that I'm no good Verse : Upstairs in bed with my ex boy He's in a place but I can't get joy Thinking on you in the final throes This is when my buzzer goes Pre Chorus: Run out to meet your chips and pitta You say, “When we're married,” cause you're not bitter There'll be none of him no more I cried for you on the kitchen floor : I cheated myself like I knew I would I told ya I was trouble, you know that I'm no good : Sweet reunion, Jamaica and Spain We're like how we were again I'm in the tub, you on the seat Lick your lips as I soak my feet Pre Chorus : Then you notice little carpet burn My stomach drops and my guts churn You shrug and it's the worst Who truly stuck the knife in first : I cheated myself like I knew I would I told ya I was trouble, you know that I'm no good I cheated myself like I knew I would I told ya I was trouble, you know that I'm no good