The Independent Police Complaints Commission says it will investigate South Wales Police's investigation into Ian Watkins, singer with Welsh rock group Lostprophets.
We received a referral from South Wales Police on 25th January 2013 relating to Ian Watkins. Following a thorough assessment I have decided that we will carry out an independent investigation.
As criminal proceedings are active, it would be inappropriate to publish further information at this time.”
Mr Watkins, 35, is charged with conspiring to rape a child and possessing and distribution of indecent images of children.
He is due to make a further court appearance in March.
More top news
Major Natalie Taylor from Chepstow is part of the all-female group who spent 62 days skiing across Antarctica using only muscle power.
A GP leader in Wales has said the progress towards Wales' first transgender clinic is 'unacceptable'.
A man from Newport has been charged with the murder of 57 year old Anthony Bubbins.