# List of Show! Music Core Chart winners (2021)

The Show! Music Core Chart is a record chart on the South Korean MBC television music program Show! Music Core. Every week, the show awards the best-performing single on the chart in the country during its live broadcast.
In 2021, 27 singles have ranked at number one on the chart and 19 music acts received first-place trophies. No release for the year achieved a perfect score, but "Antidote" by Kang Daniel, which attained the highest point total on the April 24 broadcast with 10,702 points. "Butter" by BTS and "Strawberry Moon" by IU were number 1 for 5 consecutive weeks, both earning a Quintuple Crown. The artist with the most number of wins was also IU with 10 total wins.

## Scoring system

| Period covered | Chart system | Chart system | Chart system | Chart system | Chart system |
| Period covered | Broadcast | Digital sales | Physical album | Video views | Voting |
| September 26, 2020 – February 20, 2021 | 5% (MBC radio) | 60% (50% gaon + 10% FLO*) | 10% | 10% | 35% (10% committee + 10% pre-vote* + 15% live-vote) |
| February 27, 2021 – May 8, 2021 | 10% (MBC TV + Radio) | 60% (50% gaon + 10% FLO*) | 10% | 15% | 25% (5% committee + 10% pre-vote + 10% live-vote) |
| May 8, 2021 - May 29, 2021 | 10% (MBC TV + Radio) | 50% | 10% | 15% | 25% (5% committee + 10% pre-vote + 10% live-vote) |
| June 5, 2021 – present | 10% (MBC TV + Radio) | 50% | 10% | 10% | 20% (5% committee + 5% pre-vote + 10% live-vote) |

## Chart history

Key :
| | Indicates a Quintuple Crown |
| | Highest score in 2021 |
| — | No show was held |
| Episode | Date | Artist | Song | Points |
| 708 | January 2 | BTS | "Life Goes On" | 8,141 |
| 709 | January 9 | BTS | "Life Goes On" | 8,389 |
| 710 | January 16 | BTS | "Life Goes On" | 7,819 |
| 711 | January 23 | (G)I-dle | "Hwaa" | 9,831 |
| 712 | January 30 | (G)I-dle | "Hwaa" | 7,454 |
| 713 | February 6 | IU | "Celebrity" | 10,204 |
| — | February 13 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| 714 | February 20 | IU | "Celebrity" | 8,847 |
| 715 | February 27 | Kang Daniel | "Paranoia" | 10,323 |
| 716 | March 6 | Shinee | "Don't Call Me" | 9,546 |
| 717 | March 13 | IU | "Celebrity" | 6,935 |
| 718 | March 20 | Lim Young-woong | "My Starry Love" | 8,292 |
| 719 | March 27 | Rosé | "On the Ground" | 8,394 |
| — | April 3 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| — | April 10 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| 720 | April 17 | IU | "Lilac" | 6,883 |
| 721 | April 24 | Kang Daniel | "Antidote" | 10,702 |
| 722 | May 1 | NU'EST | "Inside Out" | 8,800 |
| 723 | May 8 | IU | "Lilac" | 6,949 |
| 724 | May 15 | Highlight | "Not The End" | 7,504 |
| 725 | May 22 | NCT Dream | "Hot Sauce" | 10,000 |
| 726 | May 29 | BTS | "Butter" | 8,344 |
| 727 | June 5 | BTS | "Butter" | 8,300 |
| 728 | June 12 | BTS | "Butter" | 8,200 |
| 729 | June 19 | BTS | "Butter" | 7,792 |
| 730 | June 26 | BTS | "Butter" | 7,907 |
| 731 | July 3 | Brave Girls | "Chi Mat Ba Ram" | 7,268 |
| 732 | July 10 | NCT Dream | "Hello Future" | 6,720 |
| 733 | July 17 | BTS | "Permission to Dance" | 7,310 |
| — | July 24 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| — | July 31 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| — | August 7 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| 734 | August 14 | Astro | "After Midnight" | 8,015 |
| 735 | August 21 | The Boyz | "Thrill Ride" | 7,401 |
| 736 | August 28 | Red Velvet | "Queendom" | 8,967 |
| 737 | September 4 | Red Velvet | "Queendom" | 6,454 |
| 738 | September 11 | Red Velvet | "Queendom" | 7,321 |
| — | September 18 | No show, winner not announced | No show, winner not announced | No show, winner not announced |
| 739 | September 25 | NCT 127 | "Sticker" | 8,602 |
| 740 | October 2 | NCT 127 | "Sticker" | 8,532 |
| 741 | October 9 | Key | "Bad Love" | 6,419 |
| 742 | October 16 | Aespa | "Savage" | 9,099 |
| 743 | October 23 | Aespa | "Savage" | 7,271 |
| 744 | October 30 | IU | "Strawberry Moon" | 6,797 |
| 745 | November 6 | NCT 127 | "Favorite (Vampire)" | 8,456 |
| 746 | November 13 | The Boyz | "Maverick" | 7,435 |
| 747 | November 20 | IU | "Strawberry Moon" | 6,039 |
| 748 | November 27 | IU | "Strawberry Moon" | 5,823 |
| 749 | December 4 | IU | "Strawberry Moon" | 5,530 |
| 750 | December 11 | IU | "Strawberry Moon" | 5,570 |
| 751 | December 18 | Ive | "Eleven" | 7,486 |
| 752 | December 25 | Special episode, winner not announced | Special episode, winner not announced | Special episode, winner not announced |