Disgraced Lostprophets frontman Ian Watkins made an offensive joke during an interview with the band in 2010, hinting at his paedophilic nature.
As part of a live-streamed online interview for MySpace, the band were answering fans questions during a 43-minute casual interview.
When asked by an online user called 'babygirl' what the band's guilty pleasure is, Watkins initially answers heroin.
The singer then answers again by sniggering and saying 'You just answered it', possibly referring to the fan's username.
He is drowned out by the bandmates' talking and they appear to not hear his response.
After he turns to the camera and says, ''people watching will be like, did he just say that?''
One bandmate shrugged his shoulders and said, ''I didn't hear you.''
He then changes his answer again to 'smack', a slang word for heroin, to a chorus of giggles from the rest of the band.
The offensive comments can be found six minutes into the video.
After Watkins admitted two counts of attempted rape on a baby on the eve of a contested trial at Cardiff Crown Court, his former bandmates said they were "angry and disgusted''.
Watkins' admissions include conspiracy to rape a baby, sexually touching a one-year-old and possessing and making films of child abuse.
Former girlfriend Joanna Majic, 38, has alleged that Watkins had abused hundreds of young victims during years of secret offending.
She claimed besotted female fans of the paedophile are hiding the true extent of his offending because they secretly offered their children for abuse.
She repeatedly reported Watkins to the police from 2008 onwards but her accusations were not acted on at the time.
Watkins will be sentenced on December 18.
The Lostprophets is a rock group founded in 1997.and has sold about 3.5 million albums.
The remaining band members announced in October that they had split up.