When it comes to "All Kill", fans use the Instiz Chart to truly determine whether their favorite artist has achieved an "All-Kill (AK)" or "Perfect All-Kill (PK)".
It seems the very first "Perfect All-Kill" for 2012 was achieved by the boys of Big Bang earlier today with "Blue".
A regular "All-Kill" means that an artist must be #1 on 7 of the Major Korean Online Music Sites for that day. However, to earn the title of "Perfect All-Kill", the artist must achieve being #1 on the 7 Major Korean Online Music Sites for that day and also have the most streams (combination of mobile / callback ringtones).
Congratulations to Big Bang on this achievement.
[Thanks to everyone who sent this in!]
Source: instiz chart