Oprah turns on author

Oprah Winfrey has angrily laid into an author whose drug abuse memoir she promoted, saying revelations that he had made up parts of it had embarrassed and disappointed her.

Writer James Frey, who saw sales of A Million Little Pieces soar after Winfrey recommended it on her bookclub last year, sat meekly as the sometimes tearful talkshow host chastised him live on TV.