A video clip showing female dancers in skimpy costumes performing to American music is being secretly circulated in North Korea via CD-ROMs, a North Korean defector said Monday.

Yonhap News reported that the video, obtained by Yonhap News Agency from the defector, who requested anonymity, would not be considered obscene elsewhere in the world. But revealing outfits and American music are both considered taboo in the conservative North.

In the clip, several groups of four women in crop-tops and thigh-length shorts or skirts dance to fast disco music on a brightly-lit stage. Their outfits are made of shiny gold, red and blue fabrics, and the dancers perform in a way that would be considered lewd in North Korea - raising their bare leg and shaking their chests and hips. The video has captions giving the title of each song as it is played, and includes "Aloha Oe," a Hawaiian folk song.

The defector said the dancers are members of the Wangjaesan Light Music Band, a group that mostly performs for the upper class.

The video provides no clue about where, when or for whom the show was held. Applause is heard after each performance, suggesting there is an audience in front of the decorated stage.