Founded in 2010 by the Korea Music Content Association, the Gaon Chart (now known as the Circle Music Chart) is the premier source for tracking the digital performance of songs in South Korea. I've always been curious as to the most successful songs of all-time on the chart, but making this determination has always been difficult for a couple of reasons.
First of all, from its start until 2017, the Gaon annual chart reported the actual number of downloads and streams achieved by a song. However, in 2018, Gaon stopped this practice and switched to a "digital score" system, and the details of exactly how these scores are calculated remains a mystery. Thus, one cannot easily compare song performance between the pre-2018 and post-2018 eras.
Secondly, even within each era, music consumption trends have changed dramatically, making straightforward comparisons of streams/downloads/points mostly invalid. This is visualised in the chart below, with average streams/downloads/points for each year's top 100 songs plotted over time, relative to a baseline starting value of 100%. We see that downloads collapsed in 2013 (due to increased download pricing instituted that year) and have never recovered. On the other hand, streaming has exploded since the early 2010s, unsurprisingly. And even in Gaon's digital score regime, we see that the average number of points awarded has fallen by nearly 50%.
Thus, given all this disparate data, how does one properly determine which songs have been the most successful over the past 14 years? Given the issues I identified above, a simple comparison of streams/downloads/points would be faulty.
To get around this, my methodology was to first gather the top 100 songs for each year, as reported by Gaon. Then, I normalised each song's streams/downloads/points relative to the mean value achieved by those same 100 songs for that year. For example, if a song had 1.5 million downloads in 2010, and the average song in the top 100 had 1 million downloads, I would assign a value of 150% (= 1.5 million ÷ 1 million) to that song.
I repeated this calculation for every song's streams/downloads/points. For songs in the pre-2018 era, I then took the resulting streaming and download percentages for each song in the combined year-end Digital Chart and averaged them to get a value that could be used to compare to post-2018 songs, which just have a digital score. My final step was to add up all the percentages for every song across every year.
This process of normalising song performance to the mean (average) therefore attempts to balance out the effect of decreasing downloads, increasing streams, and decreasing digital points over time. Thus, without further ado, the 50 most successful songs according to Gaon annual data are shown in the table below:
Rank | Song – Artist | First Chart Appearance | Normalised Score |
01 | Every Day, Every Moment – Paul Kim | 2018 | 792.94% |
02 | Spring Day – BTS | 2017 | 673.34% |
03 | How Can I Love the Heartbreak, You're the One I Love – AKMU | 2019 | 555.11% |
04 | Dynamite – BTS | 2020 | 543.27% |
05 | Through the Night – IU | 2017 | 455.82% |
06 | Blueming – IU | 2019 | 451.56% |
07 | 2002 – Anne-Marie | 2019 | 441.85% |
08 | Boy with Luv (Feat. Halsey) – BTS | 2019 | 426.11% |
09 | Your Shampoo Scent in the Flowers – Jang Beom-june | 2019 | 425.61% |
10 | Me After You – Paul Kim | 2018 | 408.15% |
11 | Every Moment of You – Sung Si-kyung | 2014 | 382.93% |
12 | Love Dive – IVE | 2022 | 378.54% |
13 | Hype Boy – NewJeans | 2022 | 378.25% |
14 | Love Always Runs Away – Lim Young-woong | 2021 | 374.29% |
15 | Stay – The Kid LAROI, Justin Bieber | 2021 | 364.37% |
16 | Trust in Me – Lim Young-woong | 2020 | 360.68% |
17 | Cherry Blossom Ending – Busker Busker | 2012 | 360.62% |
18 | To You My Light (Feat.Lee Ra-on) – Maktub | 2019 | 356.15% |
19 | If You Lovingly Call My Name – GyeongseoYeji, Jeon Gun-ho | 2021 | 339.62% |
20 | Butter – BTS | 2021 | 332.51% |
21 | Celebrity – IU | 2021 | 330.35% |
22 | Shiny Star (2020) – KyoungSeo | 2021 | 320.50% |
23 | Late Night – Noel | 2019 | 319.39% |
24 | For Lovers Who Hesitate – Jannabi | 2019 | 317.87% |
25 | I Will Go to You Like the First Snow – Ailee | 2017 | 317.66% |
26 | Eight (Prod.&Feat. Suga of BTS) – IU | 2020 | 315.45% |
27 | Love, Maybe – Melomance | 2022 | 313.36% |
28 | Meteor – Changmo | 2020 | 313.28% |
29 | Hold My Hand – IU | 2011 | 311.24% |
30 | Event Horizon – Younha | 2022 | 309.43% |
31 | Next Level – Aespa | 2021 | 307.81% |
32 | Traffic Light – Lee Mu-jin | 2021 | 306.53% |
33 | Tomboy – (G)I-dle | 2022 | 306.25% |
34 | Drunken Confession – Kim Min-seok | 2022 | 301.20% |
35 | Wild Flower – Park Hyo-shin | 2014 | 300.35% |
36 | Aloha – Jo Jung-suk | 2020 | 298.17% |
37 | Attention – NewJeans | 2022 | 294.78% |
38 | After Like – IVE | 2022 | 294.23% |
39 | Rollin' – Brave Girls | 2021 | 289.33% |
40 | Shape of You – Ed Sheeran | 2017 | 287.87% |
41 | No Matter Where – M.C The Max | 2016 | 283.76% |
42 | Love Poem – IU | 2019 | 282.52% |
43 | Cheer Up – Twice | 2016 | 281.78% |
44 | Gift – Melomance | 2017 | 278.70% |
45 | Like It – Yoon Jong-shin | 2017 | 277.16% |
46 | Lilac – IU | 2021 | 276.59% |
47. | Way Back Home – Shaun | 2018 | 274.86% |
48 | Friday (Feat. Jang Yi-jeong) – IU | 2014 | 271.08% |
49 | Love Again – Im Chang-jung | 2015 | 269.52% |
50 | Galaxy – Bolbbalgan4 | 2016 | 269.43% |
Taking a look at these results, I can't say that I'm too surprised. These songs are mostly the "usual suspects", so to speak.
I've highlighted idol songs in different colouring, and as we see, idols perform rather poorly here, comprising a mere 12 of the 50 songs. Why do you think this is the case?
Are you surprised to see any songs on the list? Or conversely, are there any songs left off the list that you expected to find?
Can you identify any faults in my methodology? Is there an alternate approach that you think would be superior for ascertaining the best performing songs of the entire Gaon era?