The International Wrestling Revolution Group Anniversary Shows is an annual major lucha libre event produced and scripted by the Mexican International Wrestling Revolution Group (IWRG; sometimes referred to as Grupo Internacional Revolución in Mexico). The show is always held on or just after January 1 each year, marking the creation of IWRG on January 1, 1996. The anniversary shows are often, but not always main evented by a Lucha de Apuestas, or "bet match", where a wrestler will put his wrestling mask or hair on the line.