What musician released the song "What a Wonderful World" in 1968?

Explanation

Louis Armstrong (1901-1971) was a famous jazz musician and trumpeter. His recordings from the 1920's heavily influenced the development of jazz music. One of Armstrong's greatest hits is the song "What a Wonderful World," but he is also remembered for "All The Time In The World" from the James Bond-movie "On Her Majesty's Secret Service." In his life, Louis Armstrong achieved a level of popularity yet to be surpassed by any other jazz musician.