Guests at a private performance of the singer\'s forthcoming album were left with little doubt as to her feelings on her eight-year marriage. One song, called I Don\'t Give A, paints a picture of a typical day in a miserable and unfulfilled marriage. And, although Ritchie is not named, the lyrics seem very much from the heart. Madonna sings: \"Wake up, this is your life, children on your own, gotta plan on the phone, meet the press, buy a dress, do all this to impress ... do ten things at once and if you don\'t like it, I don\'t give a f**k.\" She goes on defiantly: \"I tried to be a good girl, I tried to be the perfect wife. Diminished myself, and I swallowed my light. \"I tried to become all that you expect of me. And if I was a failure, I don\'t give a f**k.\" Another new song, Bang Bang, is not so obviously autobiographical but finds the star in a murderous mood over a former lover. \"Bang bang, shot you dead, shot my lover in the head,\" she sings. \"And if I see that b***h in hell, I\'m gonna shoot him in the head again, cuz I want to see him die, over and over.\" The feisty lyrics, revealed in a private performance in New York on Friday, are the latest in a series of barbed comments from both sides. Madonna\'s two marriages — to Ritchie and previously to actor Sean Penn — both ended in divorce and she has said she will never marry again. But there are reports that she is considering a proposal from Brahim Zaibat, her 24-year-old French dancer boyfriend.