Razor is a Canadian speed metal band formed in 1983 in Guelph, Ontario. They are recognized as the pioneers of Canadian thrash metal and have been referred to as one of the country's "big four", alongside Sacrifice, Voivod and Annihilator. They have released 8 studio albums so far and currently are working on the new material. The performance at Metalmania Open Air will be Razor’s first concert in Poland!