Danielle Turchiano Senior Features Editor, TVIn case you haven’t gotten your share of guessing what celebrities are hiding underneath elaborate costumes on “The Masked Singer,” Fox has you covered with the first look at a few key costume reveals from the upcoming spinoff, “The Masked Dancer.”In a promo for the show released on Tuesday, which you can watch above, series panelists Ken Jeong, Paula Abdul, Brian Austin Green and Ashley Tisdale offer their best guesses on who is gyrating across the