“Jackass” star Steve-O was arrested for climbing a crane in Hollywood in a protest against Seaworld.

Stephen Glover, 41, drew dozens of emergency responders Sunday night to a construction site on Sunset Boulevard where he climbed a crane at least 100 feet high, Los Angeles police Lt. Michael Ling said.

When Glover reached the top, he inflated a large killer whale balloon with the words “Seaworld Sucks” on it and lit fireworks.

He later climbed down and was taken into custody.