"At Last" is a 1941 song written by Mack Gordon and Harry Warren for the musical film Orchestra Wives, starring George Montgomery and Ann Rutherford. It was performed in the film and on record by Glenn Miller and his orchestra, with vocals by Ray Eberle and Pat Friday. Unreleased recordings of the song, however, had been made in 1941 by Glenn Miller for possible inclusion in the film Sun Valley Serenade. An orchestral version of the song without lyrics first appeared in that movie in 1941.