Beyonce's dancer a man in "single ladies"?!?!?

this is what I have been told & yes the facial features and structure are...ummm manlike ! watch the video & tell me what you think. I mean don't try to look for any privates, because obviously if it is a man, its tucked well. haha ! I have no evidence or proof if what I am hearing is true. We shall wait till a performance, agree? OK.