From the International Day of Slayer site:
FOR IMMEDIATE RELEASE
International Day of Slayer petitions the White HouseSUMMARY
The International Day of Slayer Task Force has petitioned President Barack Obama to make the National Day of Slayer an official American holiday. As a culture in itself, metal (exemplified by Slayer) deserves recognition, and IDoS directors feel a holiday would begin that process.
BODY
Directors of the International Day of Slayer, a holiday for metal music and those who enjoy the music of Slayer, have petitioned the White House to make the holiday official.