Now in its 21st year, Viva, as it's called for short, is the world's most popular rockabilly fest, attracting 20,000-plus people from around the globe, a third of whom Ingram estimates come from California. http://www.laweekly.com/music/viva-los-angeles-how-a-vegas-festival-revived-retro-and-rockabilly-culture-in-la-9315561
