I have compiled a list of the idols with the most #1 songs on Gaon (Circle) Digital Chart since 2010. Group songs, solo songs, appearances as featured artist and collaborations are included.
1. IU – 30 songs
As lead artist (23 songs):
2010: Nagging (ft Lim Seul-ong), Good Day
2011: The Story Only I Didn’t Know, You & I, Someday (soundtrack)
2012: Every End of the Day
2013: The Red Shoes, Friday (ft Jang Yi-jeong)
2015: Twenty-Three, Heart (soundtrack)
2017: Through the Night, Can’t Love You Anymore (ft Oh Hyuk), Palette (ft G-Dragon), Autumn Morning
2018: Bbibbi
2019: Love Poem, Blueming
2020: Eight (ft Suga), Give You My Heart (soundtrack)
2021: Celebrity, Lilac, Strawberry Moon, Winter Sleep
As featured artist and collaborations (7 songs):
2010: It’s You (Sung Si-kyung)
2014: Not Spring, Love, or Cherry Blossoms (High4)
2015: Leon (Park Myung-soo)
2017: Love Story (Epik High)
2018: SoulMate (Zico)
2021: Nakka (AKMU)
2022: Ganadara (Jay Park)
2. Taeyeon (SNSD) – 18 songs
As lead artist (7 songs):
2015: I (ft Verbal Jint)
2016: Rain
2017: Fine
2019: Four Seasons, All About You (soundtrack)
2020: Dear Me
2022: INVU
As featured artist and collaborations (2 songs):
2010: Like A Star (The One)
2017: Lonely (Jonghyun)
With SNSD (9 songs):
2010: Oh, Run Devil Run, Hoot
2011: The Boys
2012: Twinkle (SNSD-TTS), Dancing Queen
2013: I Got a Boy
2014: Mr.Mr
2015: Party
3. G-Dragon (BIGBANG) – 16 songs
As lead artist (3 songs):
2012: That XX
2013: Who You?
2017: Untitled, 2014
As featured artist and collaborations (2 songs):
2011: Having an Affair (Park Myung-soo & Park Bom)
2017: Palette (IU)
With BIGBANG (11 songs):
2011: Tonight, Love Song
2012: Blue, Monster
2015: Loser, Bang Bang Bang, If You, Let’s not fall in Love
2016: Fxx it
2018: Flower Road
2022: Still Life
4. Taeyang (BIGBANG) – 12 songs
As lead artist (1 song):
2014: Eyes, Nose, Lips
+
The 11 songs with BIGBANG as seen above
5. Hyolyn, Soyou (SISTAR) & Park Bom (2NE1) & TOP, Daesung, Seungri (BIGBANG) – 11 songs
Hyolyn & Soyou
with SISTAR (9 songs):
2011: So Cool
2012: Alone, Loving U
2013: Give It to Me
2014: Touch My Body, I Swear
2015: Shake It
2016: I Like That
2017: Lonely
As lead artist (2 songs):
2013: One Way Love (Hyolyn)
2014: Goodbye (Hyolyn – soundtrack)
As featured artist and collaborations (2 songs):
2013: Stupid in Love (Soyou with Mad Clown)
2014: Some (Soyou with Junggigo ft Geeks’ Lil Boi)
Park Bom
with 2NE1 (9 songs):
2010: Try to Follow Me, Go Away
2011: Lonely, I am the Best, Ugly
2012: I Love You
2013: Falling In Love, Missing You
2014: Come Back Home
As lead artist (1 song):
2011: Don’t Cry
As featured artist and collaborations (1 song):
2011: Having an Affair (GD & Park Myung-soo)
TOP, Daesung, Seungri
The 11 songs with BIGBANG as seen above
6. CL (2NE1) & Suga (BTS) – 10 songs
CL
As featured artist and collaborations (1 song):
2015: Daddy (PSY)
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The 9 songs with 2NE1 as seen above
Suga
As featured artist and collaborations (2 songs):
2020: Eight (IU)
2022: That That (PSY)
With BTS (8 songs):
2016: Blood Sweat & Tears
2017: Spring Day
2018: Fake Love, Idol
2019: Boy With Luv
2020: On, Dynamite
2021: Butter
7. TWICE & Tiffany, Seohyun (SNSD) & Dara, Minzy (2NE1) & Bora, Dasom (SISTAR) – 9 songs
TWICE
2016: Cheer up, TT
2017: Knock Knock, Signal, Likey, Heart Shaker
2018: What is Love?, Dance the Night Away, Yes or Yes
Tiffany, Seohyun
The 9 songs with SNSD & SNSD-TTS as seen above
Dara, Minzy
The 9 songs with 2NE1 as seen above
Bora, Dasom
The 9 songs with SISTAR as seen above
8. AKMU Suhyun & rest of SNSD & rest of BTS – 8 songs
Suhyun
As featured artist and collaborations (1 song):
2014: I’m Different (Lee Hi ft Bobby)
With AKMU (7 songs):
2012: You Are Attractive
2013: Crescendo
2014: 200%, Time and Fallen Leaves
2016: Re-Bye
2019: How Can I Love the Heartbreak You’re the One I Love
2021: Nakka (ft IU)
SNSD
The 8 SNSD songs listed above (besides Twinkle)
BTS
The 8 BTS songs listed above
9. Zico (Block B) & AKMU Chanhyuk & SNSD Jessica – 7 songs
Zico
As lead artist (6 songs):
2015: Boys and Girls (ft Bablyon), Eureka (ft Zion.T)
2016: I Am You, You Are Me
2018: SoulMate (ft IU)
2020: Any Song
2022: New Thing (ft Homies)
With Block B (1 song):
2018: Yesterday
Chanhyuk
The 7 AKMU songs listed above
Jessica
The SNSD songs listed above (besides Twinkle and Mr.Mr)
10. Jang Hyunseung (Beast/Trouble Maker) & Jonghyun (SHINee) – 6 songs
Jang Hyunseung
With Beast (4 songs):
2012: I Knew It
2013: Will You Be Alright?
2014: No More, Good Luck
With Trouble Maker (2 songs):
2011: Trouble Maker
2013: Now (There Is No Tomorrow)
Jonghyun
As lead artist (2 songs):
2015: Déjà-Boo (ft Zion.T)
2017: Lonely (ft Taeyeon)
With SHINee (4 songs):
2012: Sherlock
2013: Dream Girl, Everybody
2015: View