What to wear to a dance masters work shop?

Ok so what I normally wear to class is tights leotard booty shorts and a aero or holster Shetland on top.thus is because my peotard comes up really high in the front like up to my Neck and it's reall low In the back where it shows my bra. Should I just wear my leotard bs not worry about my bra or just wear the t shirt cause i feel weird when every one else doesn't have t shirts on. Also regular or sports bra thanks.