An unruly ravers protested against riot police by planking on them at the premier of the Electric Daisy Carnival Experience at the Grauman's Chinese Theater on Wednesday.
The riot took place on Hollywood Boulevard in Los Angeles.
A crowd of fans of electronic-music DJ Kaskade showed up to the area after he tweeted that he would have an impromptu concert outside of the theater.
"Today@6pm in Hollywood @Mann's Chinese Theatre. ME+BIG SPEAKERS+MUSIC=BLOCK PARTY!!! RT!" DJ Kaskade tweeted.
Planking is an internet sensation with many people trying to one up each other by planking in the strangest of places.