It is what I keep repeating for a long time now. Yes, she is playing in a ballet for the Bolshoi, just as an actress, making some sort of a clown dressed as a tomboy. Vadim, Kristy's BF, is also working for the Bolshoi.
She talked about a "premiere" tonight, the opening, and said she needs a wig for it, but said also in another conversation that she is aiming at making a wig with her own hair that she is going to cut. This is a reason I asked a translation of the conversation they had Kristy, Heidi and Kami in the kitchen tonight, starting at 20:30. To be sure I don't make stories.