Perfect all-kill

Perfect all-kill (Korean: 퍼펙트 올킬; abbreviated as PAK) is a music chart achievement in South Korea where a song simultaneously reaches number one on the real-time, daily, and weekly components of iChart, a music chart ranking aggregator operated by the South Korean web entertainment publisher Instiz Corporation, the operator of the Instiz [ko] web forum.

[1][2] The term "perfect all-kill" was first used when the song "Nagging" by IU featuring Seulong ranked at number 1 on all Korean music charts in June 2010.

The iChart is considered transparent as it calculates scores based on various agencies' ranking data, and updates its real-time and daily charts accordingly.

This major change was reported as a measure in music chart searches largely reflecting a song's popularity.

[19] The following table lists the top 10 Korean songs with the highest number of perfect all-kills (in hours), from 2010 to present.

The following table lists the top Korean artists with the highest number of songs that achieved a perfect all-kill from 2010 to present.