A musical version of PYGMALION was turned down by EVERY major composer and lyricist--thought that George Bernard Shaw's play was a classic on its own and didn't need music.
Even Lerner & Loewe (who eventualy wrote MY FAIR LADY) initially felt that way and only reconsidered when they realized all they had to do was add the plot that initially happened "off-stage."
"I say YOU'RE the CUTEST one. No, I say YOU'RE the CUTEST One. And we go on like that from dawn to three."