The Glenn Miller Orchestra is a famous American big band formed in 1938 by musician and bandleader Glenn Miller. Known for its distinctive sound, the orchestra popularized swing music during the late 1930s and early 1940s. Some of its most famous songs include "In the Mood," "Moonlight Serenade," and "Chattanooga Choo Choo." After Miller's disappearance in 1944 during World War II, the orchestra continued to perform under various leaders. Today, the Glenn Miller Orchestra remains active, celebrating the legacy of swing music and entertaining audiences worldwide with its classic repertoire.