Hilary Duff shot back at my buddy Tim (Dirt Man) Ghianni after Tim criticized her for changing The Who's iconic lyric in My Generation, ''Hope I die before I get old.''

Hilary sings ''Hope I don't die before I get old,'' which my '60s-era hippie buddy Tim says is blasphemous — or at least kinda stupid.

In a phone interview yesterday, Hilary told Tim to pound it— or at least get off her back.

''I hate to sour on critics, but for them to care about me changing one line of a song? Get over yourselves! I'd like to see them on stage, how do they sing, how do they look on stage??''

Says Tim — who hasn't been on stage since he grabbed a tambourine and jumped on stage during a rock concert in 1969 (when Hillary was –19 years old) — ''It wasn't a pretty sight then. Nonetheless, leave The Who alone, little girl.''

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