Halloween or Hallowe'en (a contraction of its original title "All Hallows' Evening"),[5] also known as All Hallows' Eve,[6] is a yearly holiday observed around the world on October 31, the eve before the Western Christian feast of All Hallows. According to some scholars, All Hallows' Eve initially incorporated traditions from pagan harvest festivals and festivals honoring the dead, particularly the Celtic Samhain. Check out the scariest music and fun! Ghost Soldiers Radio! AAAAAOOoooooo.