McDonald's launched a campaign called "What Came First" to promote their new Southern Style chicken for breakfast and spark debate about whether the chicken or egg came first. The campaign included launching a viral website that allowed users to have animated chicken and egg characters dance off against each other, national sampling day events, and leveraging celebrity partners to promote the site on social media. The campaign was highly successful in driving traffic to the website and generating over 150,000 visitors and 45,000 dance-offs in its first month.