Frosty the Snowman began as a popular winter song in 1950 and later became a familiar holiday television character, known for his cheerful personality and magical top hat. Because he is closely tied to winter celebrations, short birthday clips featuring Frosty have spread widely on soundboards and social media as a playful alternative to a standard birthday song. People keep using them because the character feels nostalgic, friendly and instantly recognisable, especially for winter birthdays.