In K-pop, an all-kill aka PAK means that an artists' song or album ranked first simultaneously on every realtime K-pop chart. This includes daily music charts and Instiz weekly charts, which are updated almost every hour. If a song or an album gets an all-kill, it means that it's an instant hit. Also, rookie groups who get an all-kill during their debut indicate that they're off to a great start!

An example of an all-kill is IU's song "Blueming." It bagged the number one spot on all K-pop music charts 117 times!

Here are the longest perfect all-kills in K-pop:

1. Zico's Any Song — 274 times

Zico personally wrote and produced "Any Song." It was then released in January 13, 2020 by Kakao M and KOZ Entertainment.

2. iKon's Love Scenario — 204 times

"Love Scenario" spent six weeks on the number one spot on Gaon's digital music chart! Up to this day, no song has broken the group's record yet.

3. IU and Park Myungsoo's Leon — 136 times

Iu also personally wrote the lyrics of "Leon." It became an instant hit after its release.

4. IU's Blueming — 117 times

IU's "Blueming" was released through KAKAO M. It's the second single from the singer's 7th EP "Love Poem" which was released on November 18, 2019.

5. Im Chang Jung's There Has Never Been A Day I Haven't Loved You — 95 times

Im Chang Jung's "There Has Never Been A Day I Haven't Loved You" was released on September 19, 2018. It was the title track of the soloist's 14th album. The song took over major realtime music charts including Genie, Melon, Mnet, Soribada, and Melon. It also bagged the 1st place on Instiz weekly music chart.

6. BLACKPINK's Ddu Du Ddu Du — 92 times

BLACKPINK's "Ddu-Du Ddu-Du" was written and produced by Teddy Park. It stayed number one for three consecutive weeks at the Gaon Digital Chart after it was released on June 15, 2018.

7. TWICE's TT — 91 times

TWICE's "TT" was released on October 24, 2016. Soon after, it was included in Billboard's "Best K-pop Songs of the 2010s" list.

8. IU's You and I — 74 times

IU's "You an I" is included on her "Last Fantasy" album which was released by LEON Entertainment on November 29, 2011. The song instantly became an all-kill after its release.

9.TWICE's Knock Knock — 69 times

TWICE's "Knock Knock" was released through JYPE on February 20, 2017.

10.GFRIEND's Rough — 66 times

GFriend's "Rough" was recorded as a part of their third EP Snowflake in 2016. It gained a cult-following and reached the number one spot in several charts for weeks.