Did Louis Armstrong write all the songs he recorded?

In addition to being a master performer, Louis Armstrong was a gifted composer, and he wrote more than fifty songs, many of which have become jazz standards (e.g., “Gully Low Blues,” “Potato Head Blues,” and “Swing That Music”). Louis also collaborated with other musicians, such as Joe “King” Oliver, and his second wife, Lil Hardin Armstrong, and in some cases it’s not always clear if the song was a collaboration or not. Sometimes Louis allowed a collaborator to take the full credit for the song, making it harder to determine who actually wrote it. Louis also recorded arrangements of other people’s songs, as well as songs written especially for him, such as “What a Wonderful World.”