Beyonce dance punishment!?

i was caught making fun of my sister who are all in dance trying to do that stupid dance by beyonce put a ring on it, my mom got so mad because i was calling the hor's and stuff, my mom was so mad she is going to make me join them, she bought me this girl leotard, she did my hair up like them which i knew i should have cut it the other day, she even went as far as making me shave my legs, my sisters thinks its funny and a good punishment, my mom told me if i don't learn this dance then i will be joining them in 6 months of ballet cl, is this fair? what do u think?