I need help identifying the title of this short story...?

We read a short story, or an excerpt of a novel or something in middle school, with some really powerful imagery of socialism. In the story there is a beautiful ballerina who is forced to wear a mask, so that she is more equal to the other's whose beauty isn't as great. I think she was also forced to wear weights,because she was an exceptional dancer. Can anyone tell me the name of the story?