From 1652 until the 19th century, men playing onnagata were not supposed to wear wigs that covered the shaved part of their head (usually young men shaved their forelock as part of a coming-of-age ceremony). This was supposed to keep very young boys from performing in Kabuki, and also to keep the young men from being too attractive. Actors got around this by wearing a blue colored cloth over the shaved part of their head, as above.