Hotel heiress Paris Hilton has reportedly addressed her feud with Nicole Richie on a track to be featured on her debut album.

Hilton, whose long-term friendship with her SIMPLE LIFE co-star ended earlier this year (05), is planning to release her project in December (05) - and pals say it includes a very cutting song aimed at Richie.

The track talks about how Richie used Hilton and how she would never be famous without the party-loving blonde, according to a pal, who adds, "As she was playing it to me, she was just laughing and said, 'This one's all about Nicole!'"

A representative for Richie says, "We can't comment on it because we haven't heard it."

While a spokesperson for Hilton does confirm that the album will include a song about jealousy, she insists that nobody is named on the track.