Malcolm Gray Hallett (Roxbury, Boston, 1893 - november 20, 1952) was an American jazz-violinist, saxophonist and big bandleader from the swingera. Hallett studied at the Boston Conservatory of Music. During the first world war , he played in France as a member of the Orchestra of Al Moore to the Allied soldiersentertained. Then he had his own group, with which he also took up. Around 1930 he broke his arm in five places, got pneumonia and his doctors advised him to take rest for long periods. After his comeback, he played no instruments more, but was limited to leading a band. In the following years he had his own band, applied by especially in New England played and had a lot of success. He also appeared in the famous Roseland Ballroom in New York.