AceShowbiz - Westlife star Mark Feehily has taken aim at British rap trio N-Dubz - berating the hip-hop stars for their "irresponsible behavior" and branding them "total idiots". The clean-cut singer has slammed the group for not taking their task as role models for their impressionable fans seriously, after N-Dubz member Dappy was embroiled in two drugs scandals last month.

The rapper was caught on camera taking controversial drug mephedrone and was kicked out of a U.K. theme park after allegedly smoking cannabis in the venue's hotel. And Feehily has urged the band to act more like "real stars" Bono and Jay-Z - insisting the young hitmakers have "no respect".

He tells Britain's Daily Mirror, "That whole kind of scene, and that shady kind of world, is just so different to us. Bands like N-Dubz, there's a lot of public, irresponsible behavior because a lot of kids look up to them and they kind of set the bar. In the same way that little girls want to dance like Cheryl Cole and look like her, other young kids want to look, dance and act like stars out there that are drunk, fight and act aggressively."

"The real, real stars - the Jay-Zs and Bonos - don't do any of that. It's the bottom of the pile who have no respect. People idolize them, so it is totally irresponsible. For someone in the public eye, whether they like it or not, there is pressure to be a positive role model."

"It's more admirable to give out a positive message rather than acting like total idiots." Bandmate Shane Filan adds, "If N-Dubz want to go out and get drunk that's their choice, but it's sad."