Black Eyed Pilseung () were a South Korean music production and songwriting duo made up of Rado (Song Joo-young) and Choi Kyu-sung, formed in 2014. They produced hit K-pop songs such as Sistar's "Touch My Body"; Miss A's "Only You"; Twice's "Like Ooh-Ahh", "Cheer Up", "TT", "Likey", and "Fancy"; and Apink's "I'm So Sick", "Eung Eung", and "Dumhdurum".
Before the duo's formation, both members often collaborated with Shinsadong Tiger. Rado worked on hit songs such as 4Minute's "Volume Up", Apink's "My My" and "Hush", and Trouble Maker's "Trouble Maker" and "Now", while Choi Kyu-sung was involved in T-ara's "Roly-Poly", Hyuna's "Bubble Pop", and Beast's "Fiction".
In August 2017, the duo joined forces with CJ E&M to launch a new entertainment company called High Up Entertainment, which became an independent company in 2018. In February 2019, the duo debuted their first boy duo 415 (). In November 2020, the duo debuted their first girl group STAYC (). In March 2025, Rado and Choi Kyu-sung parted ways due to differing musical styles, with Choi leaving High Up Entertainment.
Members Rado Rado (; born Song Joo-young [; Song Juyeong]) was born on July 11, 1984.Rado's profile on Naver Prior to being a songwriter and music producer, he was a member of the now-defunct boy band Someday. He was also known for collaborating with rapper Dok2, starting with the 2010 EP album It's We and songs "Girl Girl" (together with The Quiett, from Thunderground Mixtape Vol. 2) and "Baby Let's Go" (together with The Quiett and B-Free, from Rapsolute Mixtape, Vol. 1), then the 2011 songs "Break Beatz" (together with Double K, from Flow 2 Flow), "That's Me" (from Hustle Real Hard) and "Come Closer/Flow2nite" (together with The Quiett, also from Hustle Real Hard), and the 2012 song "Love & Life" (from Love & Life, The Album).
Rado married Apink member Yoon Bo-mi in May 2026. The pair met in 2016 when Rado was producing Apink's "Only One" track and started dating in 2017.
Choi Kyu-sung Choi Kyu-sung (; Choe Gyuseong) was born on May 7, 1984, in Seoul.Choi Kyu-sung's profile on Naver
Production discography
2014 +ArtistSongAlbumSistar "Touch My Body"Touch N Move "Wow"Teen Top "Missing" ()Éxito "Alone" () "Cry" () "I'm Sorry" () Hyolyn and Jooyoung "Erase" () (feat. Iron)
2015 +ArtistSongAlbumNiel "Only You"ONiely "Lovekiller" () (feat. Dok2) "Lady" (feat. L.Joe) Miss A "Only You" () Colors Shannon Williams "Why Why" () EighteenJang Hyun-seung "It's Me"My "Ma First" () (feat. Giriboy) "Breakup With Him" () (feat. Dok2) "I Said I Love You" ()Teen Top "Hot Like Fire"Natural Born Teen Top "Ah-Ah" () "Confusing" ( 헷갈려) Got7 "If You Do" () Mad Twice "Like Ooh-Ahh" (OOH-AHH하게) The Story Begins
2016 +ArtistSongAlbum AOA Cream "I'm Jelly Baby" (질투 나요 BABY) Twice "Cheer Up" Page Two "TT" Twicecoaster: Lane 1 Babylon "Between Us" () (feat. Dok2) Between Us Sistar "I Like That" Insane Love BtoB Blue "Stand By Me" () Apink "Only One" () Pink Revolution "Only One" () (R&B Ver.) Dear
2017 +ArtistSongAlbum WJSN "Happy" Happy Moment Sistar "Lonely" rowspan=3 Idol School "Cause You're Pretty" () Davichi "To Me" () Twice "Likey" Twicetagram
2018 +ArtistSongAlbum Chung Ha "Roller Coaster" Offset KHAN "I'm Your Girl?" Apink "I'm So Sick" (1도없어) One & Six Hyolyn "See Sea" () Say My Name
2019 +ArtistSongAlbum Chung Ha "Gotta Go" () XII Apink "%%" (Eung Eung()) Percent Twice "Fancy" Fancy You Ruann "Beep Beep"
2020 +ArtistSongAlbum Apink "Dumhdurum" Look 415 "No Wish No More" () (feat. nafla) rowspan="2" Refund Sisters "Don't Touch Me" STAYC "So Bad" Star to a Young Culture "Like This"
2021 +ArtistSongAlbum STAYC "ASAP" Staydom "So What" "Love Fool" () "Stereotype" () Stereotype "I'll Be There" "Slow Down" "Complex" 415 "Summer Nostalgia" () rowspan="2" Toyote (Yoo Jae-suk, Haha, Mijoo) "Still I Love You"
2022 +ArtistSongAlbum Apink "Dilemma" HornSTAYC"Run2U"Young-Luv.com"Same Same""Young Luv""Beautiful Monster"We Need Love"I Like It""Love""Poppy" rowspan="1"
2023 +ArtistSongAlbumItzy"Cake"Kill My DoubtSTAYC"Teddy Bear"Teddy Bear"Poppy" (Korean ver.)"Bubble"Teenfresh"Not Like You""Bubble" (English version)"Lit"
2024 +ArtistSongAlbumSTAYC"Twenty"Metamorphic"Cheeky Icy Thang" "1 Thing""Give It 2 Me""Find" (Sung by Sieun, Seeun, and J)"Let Me Know""Fakin'" (Sung by Sumin and Yoon)"Roses" (Sung by Isa)"Flexing on My Ex""GPT"...lChung Ha"Algorithm" ()
Awards and nominations
Gaon Chart K-Pop Awards
| 2015 | rowspan="3"| Black Eyed Pilseung | rowspan="3"| Composer of the Year
| 2016
|2019
Mnet Asian Music Awards
| 2016 | Black Eyed Pilseung | Best Producer of the Year
References
External links
at Daum Music