Kim Kardashian showed off the inside of her private jet when she surprised her daughter North West and niece Penelope Disick with a luxurious trip to a Katy Perry concert.The reality star documented the trip on her Instagram Stories on Saturday night.The plane features 18 seats and the interior shades are the same ones she uses in her home. Speaking previously about the plane, following a huge refurb, Kim said: “Usually planes are dark with lighter leather.