Earth Day was fairly a new holiday since founded in the 1960's and in 1977 a unique commercial was made. The commercial begins with scenes of nature and people then ends with a close-up of Earth. All throughout the commercial Willie Nelson's version of What A Wonderful World plays. Now I don't know why they chose Willie Nelson's version of What A Wonderful World to use for this commercial and they should've used the original Louis Armstrong version instead. I was so surprised to see this commercial and "I wasn't even planning to research it" until I heard the song What A Wonderful World and that song is my mother's favorite song of all time so it was worth researching to learn more about