The Pussycat Dolls - famed for their raunchy routines - must pay $3,400 for flashing body parts during a concert in Kuala Lumpur, Malaysia, last July.
During the routine, Carmit Bachar, who has since left the group, exposed a breast while Ashley Roberts was accused of revealing her private parts after her tiny pair of shorts left little to the imagination.
Promoters Absolute Entertainment were fined for allowing their act to perform "sexually suggestive" routines in the strict Muslim country.
The penalty was imposed by the council which manages the Kuala Lumpur suburb where the event took place.
The fine followed a complaint from Malaysia's culture minister Rais Yatim, who said the group's concert featured "scantily dressed performers" and "sensuous elements".
He added: "I believe the way the Pussycat Dolls behaved on stage amounted to gross indecency,"
Under the country's Muslim laws, a female performer must be covered from her shoulders to her knees.
Jumping, shouting or throwing of objects onstage or at the audience are all also banned.
Last year, Gwen Stefani and Beyoncé Knowles were forced to dramatically alter their dance routines and cover up during their concerts in the country.