Lostprophets lead singer Ian Watkins is to be charged in court with child sex offences today 19th December.
Police revealed the Welsh rocker had been arrested as part of a continuing investigation reports Sky News.
"A Pontypridd man has been charged with sexual offences against children and is due to appear at Cardiff Magistrates' Court today" reported a spokesman.
"The 35-year-old has been charged with conspiracy to engage in sexual activity with a female under 13 and possession/distribution of indecent images of children.
"In order to assist their investigation, South Wales Police has named the man as Ian Watkins, a member of the rock group Lostprophets."
Two women, a 20-year-old from Doncaster, South Yorkshire, and a 24-year-old from Bedford, were also charged with "similar offences".
All were questioned at Cardiff Bay police station.
Police are asking anyone with any information concerning the investigation to contact the Operation Globe incident room on 0800 056 0154, or the NSPCC on 0800 389 5347.
Lostprophets have sold 3.5 million albums worldwide.