Diana Ross says she's a busy woman these days. So busy, in fact, that she hasn't had time to see the hit film Dreamgirls, which is loosely based on her life as a Motown starlet.

The 62-year-old singer told CBS "Late Show" host David Letterman on Tuesday that she is going to be a mentor on Fox's "American Idol" and is planning a world tour in March to promote her new album, "I Love You."

Ross said she didn't see the musical version of Dreamgirls, either.

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When Letterman asked her whether she was curious about the film, Ross joked: "Yes, I've heard a lot about it. I'm going to see it with my lawyers."

The film, which won a Golden Globe on Monday for best musical or comedy, tells the story of a Motown trio similar to the Supremes and their rise to fame. Eddie Murphy also won for best supporting actor, and newcomer Jennifer Hudson, a former "American Idol" contestant, won for best supporting actress.

Ross went on to say that she's heard there is a lot of her image and likeness in the movie. Beyonce Knowles' character, Deena Jones, looks like Ross during her early solo days.

"What I would like to do is to be able to see it," Ross said. "I like to inspire the talent that it is out there today."

Cinemark Movie Club