Kim Kardashian brought her mom, Kris Jenner, to tears with the most thoughtful gift imaginable for her 64th birthday. The "Keeping Up With The Kardashian" star tricked her siblings -- Khloé, Kourtney, Kylie, and Kendall -- as well as her mom's closest friends by sending them invitations with an address to meet for the party. Grandma MJ was there too and the only KarJenner that appeared to be missing from the birthday afternoon was their brother, Rob Kardashian. When everyone showed up, Kim revealed the actual birthday surprise ... she rented out their childhood home! As soon as Kim passed out the real invites with their former address listed inside, Kris let the waterworks flow.