| Artists | Title | Peak | Weeks On | Peak Streams | Year | Song Length | |
|---|
 | IU, SUGA | eight(Prod.&Feat. SUGA of BTS) | 1 | 71 | 400,219 | 2020 | 2:47 | View Track |
 | IU | Celebrity | 2 | 40 | 307,486 | 2021 | 3:15 | View Track |
| IU | LILAC | 6 | 33 | 249,211 | 2021 | 3:34 | View Track |
 | The Chainsmokers, ILLENIUM, Lennon Stella | Takeaway | 9 | 54 | 231,416 | 2019 | 3:29 | View Track |
 | IU | Love wins all | 14 | 7 | 236,659 | 2024 | 4:31 | View Track |
 | IU | Blueming | 18 | 33 | 171,404 | 2019 | 3:37 | View Track |
 | Jay Park, IU | GANADARA (Feat. IU) | 22 | 8 | 117,657 | 2022 | 3:23 | View Track |
 | IU | BBIBBI | 25 | 19 | 129,139 | 2018 | 3:14 | View Track |
 | Agust D, IU | People, Pt. 2 | 28 | 2 | 127,058 | 2023 | 3:33 | View Track |
| IU | Coin | 29 | 4 | 116,518 | 2021 | 3:13 | View Track |
 | IU | strawberry moon | 31 | 5 | 118,957 | 2021 | 3:25 | View Track |
 | Agust D, IU | People Pt.2 | 39 | 3 | 110,144 | 2023 | 3:33 | View Track |
| IU | Flu | 46 | 2 | 91,897 | 2021 | 3:08 | View Track |
 | IU | Love poem | 49 | 7 | 101,072 | 2019 | 4:18 | View Track |
 | IU | Palette (Feat. G-DRAGON) | 55 | 13 | 69,930 | 2017 | 3:37 | View Track |
| IU, DEAN | Troll (Feat. DEAN) | 65 | 1 | 70,427 | 2021 | 3:09 | View Track |
| IU | Hi spring Bye | 71 | 1 | 66,265 | 2021 | 5:24 | View Track |
| IU | My sea | 73 | 1 | 66,123 | 2021 | 5:16 | View Track |
 | IU | Give You My Heart | 77 | 7 | 91,410 | 2020 | 4:40 | View Track |
 | CHEN, BAEKHYUN, XIUMIN | For You | 91 | 12 | 35,631 | 2016 | 3:16 | View Track |
| IU | Ah puh | 92 | 1 | 59,298 | 2021 | 3:20 | View Track |
| IU | Empty Cup | 93 | 1 | 59,046 | 2021 | 2:19 | View Track |
 | AKMU, IU | NAKKA | 112 | 1 | 51,750 | 2021 | 3:32 | View Track |
| IU | Epilogue | 121 | 1 | 51,286 | 2021 | 3:49 | View Track |
 | IU | Into the I-LAND | 132 | 2 | 47,200 | 2020 | 3:37 | View Track |
 | IU | Shopper | 144 | 1 | 70,832 | 2024 | 3:35 | View Track |
 | IU | Winter Sleep | 151 | 1 | 42,509 | 2021 | 4:22 | View Track |
 | Gryffin, ILLENIUM, Daya | Feel Good | 151 | 9 | 31,641 | 2017 | 4:08 | View Track |
 | Zico, IU | SoulMate | 164 | 1 | 40,850 | 2018 | 3:39 | View Track |
| IU | above the time | 168 | 1 | 50,816 | 2019 | 5:00 | View Track |
