Malaysia is cracking down on foreign singers in skimpy outfits and will blacklist performers who don't follow orders to cover up, a report said today.

Officials in the mainly Muslim nation, which last year fined a promoter over a concert by the hit-making Pussycat Dolls, said they would take special aim at female singers - and give no leeway to famous names.

"If they wear eye-popping outfits and if they behave improperly or indecently, or say things that touch on religious, social and cultural sensitivities, the officers have a right to stop the show," immigration official Mohamad Ramlan Che Hassan told the New Straits Times .

"The singers can continue to perform if the officers' advice is followed. If they don't, the singers and their managers will be blacklisted," he told the paper. He could not be reached directly for comment.

Conservative Muslims in Malaysia regularly express outrage over rock concerts which are deemed overly sexual and immoral.

Ramlan said he had warned an unnamed top Indonesian female singer she would be blacklisted if her performance was too sexy.

"She is known for her gyrating performances. When she performed in Malaysia in 2005, we received a lot of complaints that her sexy antics were bad for our youth," said Ramlan.