Knotfest is a music festival created in 2012 by American heavy metal band Slipknot. The event has been held both as a touring festival and a destination festival in several countries including the United States, Canada, Japan, Mexico, Colombia and France. Aside from Slipknot, Knotfest has featured a diverse alumni of past performers including Deftones, Marilyn Manson, Lamb of God, Bring Me The Horizon, Prong, Deadly Apples, Amen, Butcher Babies and Prayers.