Kim and Kourtney Kardashian Nail Madonna, Michael Jackson Halloween Costumes

Kim and Kourtney Kardashian took the cake for costumes Saturday night in Bel Air.

Kim got Madonna on the nose, and Kourtney did an impressive Michael Jackson. They were headed to a party in the fanciest of areas of L.A. when photogs got the pic.

The way the story goes ... Madge and MJ dated back in the day. Madonna once brought Michael as her date to the 63rd Academy Awards ceremony back in 1991, and that was the inspiration for the costumes.