*Note: Ra.D’s own songs and songs that he produced for the members of realcollabo label are not included here.
- Kebee - Constellation (feat. Ra.D) (2007)
- Dynamic Duo - 어머니의 된장국 [Mother's Miso Soup] (Feat. Ra.D) (2008)
- Dynamic Duo - 아버지 [Father] (Feat. Ra.D) (2008)
- Narsha - I'm In Love (with 정성하) [remake of Ra.D’s I’m In Love” (2010)
- Ga-In – Esperando (2010)
- 2PM – I Can’t (2010)
- Kim Jin Pyo (김진표) - 가지말걸 그랬어 (feat. JooYeong) (2011)
- Alex (알렉스) - TOMBOi (feat. LOVEY) (2011)
- Lee Seung Gi - 어디라도 Anywhere (Ra.D Mix ver.) (2011)
- Wonder Girls – Be My Baby (Ra.D mix) (2011)
- Kim Jin Pyo - 가지말걸 그랬어 feat. JooYeong (2011)
- 2AM - 그냥 있어줘 (Just Stay) (2013)
- Kim Jo Han - 별.달.다 (The Stars, The Moon, All For You) (Feat. Jo HyunAh of Urban Zakapa) (2013)
*last updated 03/2014