Who created the first concert poster?

The first concert poster is often attributed to artist and designer Victor Moscoso, who created promotional materials for the San Francisco music scene in the 1960s. However, concert posters as a concept date back further, with various forms of musical advertisements appearing in the 19th century. The vibrant and artistic style of Moscoso and his contemporaries, like Stanley Mouse and Alton Kelley, played a significant role in popularizing the modern concert poster as an art form.