Jennifer Kowalski, 29, and Cole Macdonald, 23, breached the perimeter fence at Stansted Airport in Essex with an angle grinder then took turns spraying two planes with paint and filming it. Their trial, at Chelmsford Crown Court, was told they had been targeting the pop star’s jet but the two planes they sprayed belonged to an insurance firm and an investment group. Judge Alexander Mills said there was “no dispute” Kowalski and Macdonald caused the damage, spraying the aircraft with orange paint from a fire extinguisher. “Did they intend to cause damage or were they reckless as to whether damage would be caused.”Barrister Laura O’Brien, defending, said Kowalski had believed the paint could be hosed off the planes. Rebecca Martin, for Macdonald, said: “She believed, because she was told, it (the paint) wouldn’t have stuck to, stained or corroded the aircraft.