Reportedly the result of a conversation between Mittal and London Mayor Boris Johnson at Davos, the Orbit surpasses both inBigBen and the Statue of Liberty in height.
He added that the stadium's 27-tonne bell was being cast on Friday at London's Whitechapel Foundry - where 13.5-tonne BigBen was cast in 1856 - and would be inscribed with a quote from The Tempest's Caliban: "Be not afeard, the isle is full of noises".
Along with key landmarks such as BigBen, the Houses of Parliament, and The London Eye going dark, the quadrocopters will turn off their glow in support of Earth Hour.