Jack in the Green, also known as Jack o' the Green, is an English folk custom associated with the celebration of May Day. It involves a pyramidal or conical wicker or wooden framework that is decorated with foliage being worn by a person as part of a procession, often accompanied by musicians. The tradition died out in the early twentieth century. Later that century, various revivalist groups emerged, continuing the practice of Jack in the Green May Day processions in various parts of England. The Jack in the Green has also been incorporated into various modern Pagan parades and activities.