International Emo Week is a week long this year 2017 it is october 16th to 20th holiday (which is by law mandatory in many countries) in which every citizen must act emo for a week. International Emo Week happens once approximately every 25 years, so it can affect as many pop culture phenomena as possible. After the civil war, this is America's second bloodiest event of all time. As much as 12,472,000 gallons of blood are lost annually due to this week long holiday. And as much as 300 million worldwide.