Hollywood Blvd in L.A. latest scene of flash mob violence.Police estimate over 1000 descended on invitation only Chinese theater for EDM (eletronic dance music) screening. Angry persons took to rioting in the streets, roiters burned police car and pelted store and police with rocks and bottles.Some famous EDM performer apparently texted his followers,invited them to the scene,where they were rebuffed and refused entry, the rest is history.