The Illmore party in Austin, Texas during SXSW has grown from a private house party for friends to a major free event featuring top hip hop and EDM performers like Kendrick Lamar, Lil Wayne, and Diplo. Over 5,000 people registered for tickets and used the mobile app to RSVP, post photos, send messages, and view the chat rooms during the party. Press coverage called it one of SXSW's most exclusive, popular, legendary, and hottest fixtures.