Rolf Harris has written a "disgusting" song from his prison cell, attacking his victims, The Mail on Sunday claims today.

The lyrics are contained in a letter the disgraced children's entertainer allegedly sent from Category C Stafford Prison to someone close to him, it is claimed.

Harris' friend is said to have been so appalled by its contents, he decided to hand it to the paper.

In the letter, the convicted paedophile is alleged to say that, "after eight months inside, the inner rage has come to the fore (and) I've started writing a song about the injustice of it all."

In the song, he is said to describe the women as "woodworms" who have "climbed up out of the woodwork from 40 years ago", adding "The climate's great in Britain now for making loads of dough.

"You've festered down there long enough, time's right to grab your chance. Clap eyes on a rich celebrity and make the b****** dance.

"That old bandwagon you crawled out of (rotten to the core), conceals a host of foul accusers, twenty maybe more.

"My guess is they'll slide after you, all following your stench. Perhaps you believe you're pretty still, some perfumed sultry wench."

It includes a chorus: "'Make him squirm', I can hear you singing. 'Make him squirm, squirm, squirm'. Just imagine all of the money waiting there."

The letter claims the 84-year-old plans to record the song "the moment I get out" - and envisages a "country rock sound with a heavy back beat".

Harris, who was jailed for six years in 2014 for 12 indecent assaults on girls, aged between seven and 19, believes he will get parole "towards the end of 2017".

He describes life behind bars as "no hardship", adding that he is working in the prison's art room as an assistant "and basically I'm doing what I like".

One of Harris' victims told The Mail on Sunday she was "totally revolted" by the letter.

"Despite convictions on every count he has shown no remorse and continues to think he can treat his victims like dirt," she said.

"His arrogance is beyond belief. I am devastated by reading this and it will set back my recovery at a time when I am trying to rebuild my shattered life."

Liz Dux, a solicitor from Slater and Gordon, who represent his victims, said the letter should be taken into account, should Harris ever be allowed to apply for parole.

"(The victims) will be distraught at this disgusting song. They came forward because they wanted to see him face justice - it was nothing to do with claiming compensation."

Harris attacked his victims between 1968 and 1986.