I actually tooko this kind of on face value - as if he was talking about his "friends" (i originally though roomates - perhaps at college, before he got famous), and what happened when, basically, they'd blown all their money, probably on drugs. They all seem to have ambitions, and he thinks his if the only one vaguely sensible one - like, "yeahh, i'll become a rock star to pay for our daily baked beans on toast!".
he's also laughing at them, in a friendly way - "well, he can tell you that he tried,".
I actually tooko this kind of on face value - as if he was talking about his "friends" (i originally though roomates - perhaps at college, before he got famous), and what happened when, basically, they'd blown all their money, probably on drugs. They all seem to have ambitions, and he thinks his if the only one vaguely sensible one - like, "yeahh, i'll become a rock star to pay for our daily baked beans on toast!".
he's also laughing at them, in a friendly way - "well, he can tell you that he tried,".