Tabatha Coffey a knows a thing or two about hair, to put it mildly, so when she was asked to play a game of "OK! or Not OK," let’s just say the tell-it-like-it-is veteran hairstylist kept it real!br br While talking to OK! about her new show, Relative Success with Tabatha, the Aussie reality star revealed which celebrity hairstyles and hair trends receive the Tabatha stamp of approval and which need to return to the drawing board.