The artist database used for training the generative AI program Midjourney has been leaked, sparking widespread controversy on social media and within the art community. The leaked list includes some well-known artists such as Banksy and David Hockney. The incident has drawn criticism on social media, involving over 16,000 artists, and has also led to copyright lawsuits. Midjourney CEO David Holz has confirmed the use of names of over 4,000 artists for generative AI training.