Harold Arlen has written over 400 songs.
Each song is handled by one or more publishing companies.
ASCAP maintains a list of published Harold Arlen songs and who to contact (publishers/administrators) in order to license these songs for exploitation within the United States.

If you are seeking to license a song for exploitation in any territories outside of United States, please contact the appropriate U.S. publisher(s) of the song(s) in which you are interested in order to obtain foreign publisher information.