GARY Glitter, the musician convicted of child sex offences, raped a girl in Jimmy Savile's dressing room in front of the television presenter, it has been claimed.
The attack, in the 1970s, allegedly took place as Savile was touching a 14-year-old inappropriately in the same room.
A third star -- a household-name entertainer who still performs -- was also abusing a schoolgirl, according to the claims.
The allegations were made by Karin Ward, a former pupil of the Surrey school where Savile is accused of preying on underage girls. She waived her anonymity to tell an ITV documentary screened on Wednesday night how the 'Jim'll Fix It' star was working with Glitter, a convicted paedophile.
Mrs Ward said her abuse happened when, aged 14, she and two fellow pupils of Duncroft boarding school for emotionally disturbed children in Surrey were invited to London by Savile.
She told ITV News the three vulnerable girls were taken to Savile's dressing room at BBC Television Centre.
She recalled: "I saw Gary Glitter have sex with a girl in Jimmy Savile's dressing room. . . in that little alcove bit. I didn't see it completely but that's what was going on and nobody batted an eyelid.
"Jimmy Savile had a girl on his lap and he had his hand under her skirt.
"The girl Gary Glitter was having sex with also came from Duncroft. I think she might have been not quite 14."
She said the third star -- a well-known entertainer -- tried to grope her. "It frightened me and freaked me out," said Mrs Ward.
The star was not named by ITV as he has denied the allegations.
Mrs Ward said she was considering going to the police.
Glitter, real name Paul Gadd, was said to have strongly denied the allegations.
It was also reported that the late Douglas Muggeridge, the former Radio One controller in the 1970s, was aware of abuse allegations surrounding Savile.
The claims put fresh pressure on the corporation, which has been accused of turning a blind eye to repeated claims of inappropriate behaviour by the eccentric presenter, who died last year aged 84.
In the past week 11 women have come forward to say that Savile forced himself on them when they were schoolgirls, some in BBC dressing rooms, with more details emerging in an ITV documentary on Wednesday night.
The BBC's 'Newsnight' pulled a similar programme last year, claiming it could not substantiate the allegations. (© Daily Telegraph, London)