Georg Malmstén was a Finnish singer, musician, composer, orchestra conductor and actor. He was one of the most prolific entertainers in Finland of his time, producing over 800 records in numerous genres. In late 1930s, owning a record company, he made about half of his releases under the pseudonym Matti Reima. He was the oldest of three children of a Swedish-speaking family, with Russian ancestry through his mother, Eugenie Petroff, and brother of singer and bandleader Eugen Malmstén.