What a wonderful world is a classic song written by Bob Thiele and George David Weiss, and famously sung by Louis Armstrong in 1967. The song celebrates the beauty and diversity of the world, despite its challenges and conflicts. Armstrong sings about the wonders of nature, friends, lovers and positive emotions. Its warm vocals and sweet, reassuring melody make it a universally beloved anthem of hope and peace, often featured in movies, television programs and commercials.