Kim Kardashian --- The Chaotic Return to Los Angeles

Kim Kardashian returned from her post-break up tour of Australia moments ago ... flanked by Khloe, Lamar Odom ... and EVERY SINGLE PAPARAZZI IN NORTH AMERICA.

Kim was rocking an all-black outfit ... presumably to mourn the death of her beautiful, yet fragile, union to Kris Humphries.

R.I.P.