The festival was originally a two-day event until 2007, when the Friday became a mainstay event for live music. However, the 2007 festival was criticised by many festival-goers who missed acts on the Friday due to huge traffic jams of 10 miles on the A91 and A977 leading to Kinross. To prevent a repeat of the traffic chaos, in 2008 organisers allowed a limited number of campers to pitch up on the Thursday in order to cut the number of cars on the roads on the Friday. By extending the festival over a full three days, it began to grow rapidly, becoming the second-largest greenfield festival in the United Kingdom, and the fifth-largest in the world in terms of attendance, with over 85,000 people on site every day.