Instagram has become an important tool for fashion brands and influencers due to its high levels of engagement compared to Twitter. However, Twitter still plays a leading role for many celebrities and events due to large established audiences. New York Fashion Week traditionally dominated social media discussions on Twitter because of celebrity presence, while Paris also relies heavily on Twitter. However, the fashion industry is changing how it interacts with professionals and customers, with US brands first to shift away from official event hashtags and take a more personal approach on social media.