2021 produced 203 #1s across six music shows, shared by 53 artists and 74 songs.
The most wins went to IU (20), followed by BTS (13) and NCT Dream (10).
The most-awarded song was “Celebrity” by IU with 9 wins on 4 shows, then “Hwaa” with 6.
Songs that swept five or more shows: “Hwaa”, “Rollin'”, “On the Ground”, “Lilac”, “Sticker”, “Savage”, “Antidote”, “Hot Sauce”, “Hello Future”, “Thrill Ride”, “Maverick”.
First-ever music show wins went to KyoungSeo, Rain & J. Y. Park, Aespa, U-Know, Kim Woo Seok, ONF and 17 more — 23 artists in total.
Counts are recomputed every morning from each show's published results (Wikipedia lists, CC BY-SA). Weeks without a broadcast or record are shown in grey; dates open episode pages.