Dr. Dre performs at the 2012 Coachella Valley Music and Arts Festival in Indio, California April 15, 2012. The Coachella festival, which commenced in 1999 on the desert lawns of the Empire Polo Club in Indio, California, has grown from 25,000 attendees overall to 75,000 people a day, and has become an important platform for alternative rock, rave and electronic music acts. REUTERS/David McNew (UNITED STATES – Tags: ENTERTAINMENT)