International Kazoo Day is observed worldwide every February 19 to celebrate the kazoo, a unique musical instrument that anyone can learn to play. The kazoo is classified as a membranophone, producing sound through a vibrating membrane when a player hums into it. The instrument's history traces back to the mid-19th century, with its first patent granted in 1883, although the modern design was patented in 1902. Celebrations often include posting videos of kazoo performances on social media, teaching others to play, or even forming kazoo bands. Notably, the Original American Kazoo Company, established in 1916 in Eden, New York, and the Kazoobie Kazoo Factory in Beaufort, South Carolina, are significant locations for kazoo production and culture. International Kazoo Day is believed to have been inspired by National Kazoo Day, founded in 1983 to honor the joy the kazoo brings to people.