Rock singer Ian Watkins has pleaded guilty to a string of sex offences, including the attempted rape of baby.

The former lead singer with multi-million selling band Lostprophets made a series of admissions in a last-minute change of plea ahead of what would have been his trial at Cardiff Crown Court.

Paedophile Watkins, 36, from Pontypridd, insists he has no memory of what would have been key video evidence at the trial showing the abuse of his one-year-old victim, the court heard.

The tattooed singer pleaded guilty to a string of sex offences he had previously denied.

The charges included sexually touching a one-year-old and encouraging a crazed groupie to abuse her own child during a sordid webcam chat.

Watkins also admitted possessing and making child porn as well as launching the plot to rape a baby.

The disgraced rocker was originally charged with actual rape but insisted sex with the child did not take place during a drug-fuelled binge he says he was on at the time.

Watkins originally faced 24 separate charges - all sex offence related.

He pleaded guilty to 11 charges today, nine of which were unchanged and two of attempted baby rape, as opposed to rape.

Prosecutor Christopher Clee QC told the judge that both of the attempted rape admissions were accepted.

He acknowledged that there was an argument regarding what key video evidence seized from Watkins's laptop actually showed.

"From the footage, there is an argument as to whether the full offence is made out," he told judge Mr Justice Royce.

"If it is made out, it is minimal. There is so little difference between the full attempt and the attempt as to make no difference.

"We are prepared to accept the pleas as tendered."

He also told the judge that the prosecution had in mind the effect on the jury of watching the explicit video footage.

Previous hearings discussed arranging counselling for jurors who might need it.

As talk of sentence was discussed in court, a pale faced and grey haired Watkins began shaking in the dock.

Prosecuting QC Chris Clee gave details of a sickening plot to turn babies in subservient sex slaves using hard drugs.

He said: "Ian Watkins was the lead singer of a successful band called the Lostprophets.

"He was also a determined and committed paedophile engaged in serious sex offences involving of two babies."

Mr Clee read aloud to the court a series of text and internet messages between Watkins and two female co-defendants.

Watkins and Woman A swapped messages where the frontman spoke of his sick desire to "make him mine" and to "cross the line".

They also spoke of plans to blow crystal-meth smoke into the child's face at a secret meet up in a Cardiff hotel.

And on March 23, Watkins sent the woman a message saying he wanted a "summer of filthy child porn" and how he wanted to take things "to the next level".

Mr Clee also gave details of a sickening 17-minute video involving Watkins and Woman A.

Mr Clee said camcorder footage was shot in a London hotel room which showed Watkins perform a sex act on the child.

Computer analysts found the footage uploaded to online storage facility The Cloud.

Mr Clee said that following this meeting, the pair exchanged emails about how they would not go "easy" on the child next time.