The show's obstacle course itself is a sight to behold, a padded monstrosity bringing together flashing lights, jets of smoke and bits of random scaffolding, like an arts-science project cobbled together by Optimus Prime.
She then ran into the center of the main stage, surrounded by jets of smoke, to enter a golden cage and perform "Piece of Me".
Pyrotechnics and jets of smoke used in the show were created by Lorenzo Cornacchia of Pyrotek Special Effects and Tait Towers.
The song ended with Spears taking off her ringleader jacket to reveal the Swaroski-crystal corset and running into the center of the main stage, as she was surrounded by jets of smoke.
JFK [airport] was on one side and a cloud of jet black smoke was on the city side.
"The plume of smoke has reached jet flying altitude and plans have been made for planes flying through Icelandic air control space to fly southwardly tonight," said Hjordis Gudmundsdottir, the Isavia spokeswoman.
"The plume of smoke has reached jet flying altitude and plans have been made for planes flying through Icelandic air control space to fly southwardly tonight," said Hjordis Gudmundsdottir, the spokeswoman for Isavia.
When four sets of jet fans are operated, the backlayering of smoke is eliminated, the result of simulation shows more reasonable.
Thursday's elaborate inauguration ceremony featured an airshow, in which three of the French Rafale aircrafts and twelve F-16 jets from the US drew plumes of smoke across the sky.
