To install the game,open the "Harlem Shake" folder,then you will see a folder named "SD" and a .dat file named "DYOM1.dat".Put these 2 items into your GTA San Andreas User Files.To load this mission,load up your GTA San Andreas>DYOM. Then press "Y",go to "Mission Menu","load mission". Then press "Harlem Shake". That's it! 
  

                             Hope you got fun in this mission!

                                               Credits go to:                                maoffense01(me)- for the mission and sounds.Actiolly,for the whole                                                         thing!